It's been a real buzz watching my sales and rankings recently. Liberty reached #3 in the scifi category on amazon.com and #31 of all ebooks. But my favourite moment was spotting the listing below - sharing a row with two of my favourite SF books!

But, being the 28th of the month, this post is all about other great science fiction books worth checking out...

Inquisitor Angel Xia, former mercenary turned detective, is used to being the hunter. But on another routine murder investigation the bodies begin to pile up, and Angel finds herself a target of sinister powers determined to conceal the truth.
The hunter has just become the hunted.
Betrayed by those she trusted most, and barely escaping assassination attempts, Angel receives a cryptic message from child begging for her help. Framed for horrific crimes, the only chance to clear her name is inextricably linked to a little girl.
Running for her life, Angel races to forgotten places at the edges of known space that hold the darkest secrets of humanity…and the greatest threat to its future.
And all will be determined by what she chooses to do next. That is... if she can stay alive.

Captain Jess Tolvern of HMS Blackbeard is leading a Royal Navy expedition across long-dormant space lanes toward Old Earth when an alien fleet ambushes her battle cruiser. The aliens are Adjudicators, an ancient race whose ethos is to judge other species and reduce their survivors to a stone age existence.
Tolvern sends a desperate message back to headquarters and retreats with her damaged ship to friendly systems. By the time she returns, the aliens have already invaded Alliance territory with a powerful fleet of star fortresses and accompanying dragoon ships, trapping and laying siege to the allied fleet.
While repairing her ship, Tolvern cobbles together a squadron of damaged allied warships, former raiders, and the local survivors of an Adjudicator attack to drive off the alien fleet.

In the vein of the hit television show Battlestar Galactica comes Earth Strike—the first book in the action-packed Star Carrier science fiction series by Ian Douglas, author of the popular Inheritance, Heritage, and Legacy Trilogies and one of the most adept writers of military sf working today. Earth Strike rockets readers into a vast and deadly intergalactic battle, as humankind attempts to bring down an evil empire and establish itself as the new major power. Fans of Robert Heinlein’s Starship Troopers and Joe Haldeman’s The Forever War, welcome aboard the Star Carrier!

In a domed city on a planet orbiting Barnard's Star, a recently hired maintenance man has just committed murder.
Minutes later, the airlocks on the neighbourhood block are opened and the murderer is asphyxiated along with thirty-one innocent residents.
Jax, the lowly dome operator on duty at the time, is accused of mass homicide and faced with a mound of impossible evidence against him.
His only ally is Runstom, the rogue police officer charged with transporting him to a secure off-world facility. The pair must risk everything to prove Jax didn't commit the atrocity and uncover the truth before they both wind up dead.

Avalon was the flagship of the Castle Federation in the last war, now twenty years past. The first of the deep space carriers, no other warship in the fleet holds as many honors or has recorded as many kills.
No other warship in the fleet is as old.
Accepting the inevitable, the Federation Space Navy has decided to refit her and send her on a tour of the frontier, showing the flag to their allies and enemies as a reminder of her glory – and then decommission her for good.
But Avalon has been a backwater posting for ten years – and has problems a mere refit can’t fix. The systems along her planned tour have been seeing pirates for the first time in decades, and there are rumblings of Commonwealth scouting ships all along the border.
It may be Avalon’s final tour – but it looks to be anything but quiet!

The Earth lies in ruins in the aftermath of an extraterrestrial invasion, the land devastated by a desperate war with no winners between mankind and a race of vicious, intelligent creatures. The seas are drying up while the atmosphere corrodes and slowly cooks any life remaining on the now desolate rock. Food is scarce, trust even more so, and the only people left alive all have done horrific things to stay that way.
Among the few survivors is Lucas, an ordinary man hardened by the last few years after the world’s end. He’s fought off bandits, murderers, and stranded creatures on his long trek across the country in search of his family, the one thing that drives him to outlive his dying planet. What he finds instead is hope, something thought to be lost in the world. There’s a ship buried in a crater wall. One of theirs. One that works. To fly it, Lucas must join forces with a traitorous alien scientist and a captured, merciless raider named Asha. But unless they find common ground, all will die, stranded on a ruined Earth.

Late in the twenty-sixth century, the human race has advanced enough to accidentally trigger the Inhibitors—alien killing machines designed to detect intelligent life and destroy it. The only hope for humanity lies in the recovery of a secret cache of doomsday weapons—and a renegade named Clavain who is determined to find them. But other factions want the weapons for their own purposes—and the weapons themselves have another agenda altogether...

In the distant future, Earth's worst criminals have all disappeared … and no one knows where they've been sent.
Sirio Falken has been a fighter his whole life. But when the government bans professional fighting, his life spirals out of control. All of the convicts he's ever known have disappeared from Earth, never to return. He's about to find out firsthand what happened to them. He'll have to stay alive amongst Earth’s most ruthless felons if he wants to survive … and become the first man to escape from Oz.

Captain Luta Paixon of the far trader Tane Ikai needs to know why she looks like a woman in her thirties–even though she’s actually eighty-four. She isn’t the only one desperate for that information.
The explanation might lie with her geneticist mother, who disappeared over sixty years ago, but even if her mother is still alive, it’s proving to be no small task to track her down in the vast, wormhole-ridden expanse of Nearspace. With the ruthless PrimeCorp bent on obtaining Luta’s DNA at any cost, her ninety-year-old husband asking for one last favor, and her estranged daughter locking horns with her at every turn, Luta’s search for answers will take her to the furthest reaches of space–and deep inside her own heart.

Outside the bubble, a radiated wasteland turns men to madness. Inside the bubble, unchecked greed turns men into monsters.
Merrik knows what horrors lie in wait beyond the city’s protective bubble—the solar radiation ravaged wastelands and the half-mad survivors who lost the lottery to get inside. As the city bounty hunter, he’s sworn to enforce the laws that keep their fragile pocket of civilization intact, even if it means venturing into the desolate wilds himself.
But when a smug new council member starts micromanaging his job, even Merrik is tempted to break the rules. His annoyance with his superior soon turns to suspicion when a captured fugitive tells him of a closed-door society built on the blood of the innocent. With the council watching his every move, Merrik must infiltrate the city’s powerful inner circle to take out the conspirators before they turn humanity’s last safe haven into a dystopian state far more brutal than the hellscape closing in on every side.

What happens when your experimental spacecraft breaks down near Neptune? Dying alone in space is the likely answer, right?
That's not how Wil Calder's story ends though; it's how it begins. Alien space outlaws rescue him and sell his pod for scrap.
He's given a choice: join the crew or step out the airlock without his spacesuit. Not great choices, right?
Now, years later, Wil is a lonely intergalactic outlaw and smuggler, looking for a crew.
Because space is lonely and boring, Wil could use some friends or at least people to work with, maybe boss around a little.
Before Wil can even enjoy having a crew to call his own, they find themselves in the center of a plot to start an intergalactic war.
A plot they aren't remotely qualified to stop, but who looks at qualifications these days?
Between epic space battles, a quest for redemption and a daring heist, the crew uncovers a dangerous secret.
A secret that they can't let stay hidden; too many worlds hang in the balance.

There is only one rule: Never leave the settlement
Nobody remembers when human civilization fell to the living computer known as the Interspace. Trapped within its massive expanse, what remains of humanity struggles to survive. There are no maps to the outer grids, and drones patrol the network. Escape is impossible.
Except seventeen-year-old Sol can access the network's secrets in her dreams. The information comes at a physical cost, but with food and medical shortages threatening her community, it's a small price to pay for survival. The supply runs are also the best way to prove she can still contribute, especially after her recent epilepsy diagnosis took away the role she'd been training for.
When a grave mistake alerts the drones to her trespassing, Sol finds herself running for her life. She never expects to encounter Echo, a stranger who may hold the key to humanity's freedom.
Together, Sol and Echo will attempt to reach the central core of the Interspace and shut down the system. To survive the journey, they will need to evade drones, signal towers, and a dangerous enemy known only as the Override. Even with Sol's access to the network and Echo's incredible abilities, they may still fail. The Interspace is always watching, and if they're discovered, it will mean the final extermination of all mankind.

Rob Engleman has spent all of his seventeen years on a small island, safe from the dangers of the alien world around him. Yet he is not content to live the simple life of an island farmer. When a mysterious boat is found drifting near his island, Rob will take the opportunity it presents him to leave his home and venture into the menacing unknown.
Accompanied by his older brother and his friends, Rob’s journey to discover the world beyond his island will lead him to discover hidden treasures of the past and the true value of love and friendship.
But there are more dangers than just those in the sea. An ambitious empire, bent on domination, threatens the freedom of his island. Rob must decide whether to follow his dream of traveling the world or go to war to defend his home.

Transported light years in a heartbeat
Ripped from Earth in a horrifying teleportation accident, archaeologist Eliana Fisk finds herself stranded on a strange planet whose denizens want her as a human sacrifice.
Can she stay out from under the knife long enough to find her way home? Or will the desperate natives and their bloodthirsty gods get to her first?

The War has arrived.
Humanity's 1,000-year peace is about to be shattered. Chased from Earth by the invading Otrid, the remnants of the human race have for a millennium stayed hidden on a small moon in a distant star system. Protected by seven mysterious, god-like beings, the human race has slowly rebuilt itself, and the terrors of the past are but ancient stories.
But even the gods may not be able to protect them from what's coming.

Nuclear wars have devastated the planet. Life as we know it is over.
After a personal failure, Gavin has turned his back on fighting, but with Alliance soldiers dying every day, he has no choice. He must return to battle and take command of a classified unit of high-powered ballistic mechs. The stakes are high as the Syndicates ruthless tyranny threatens those in their path

In the 36th century, humanity has spread across the stars...
Zona Nox. Crime-ridden cesspool at the edge of the galaxy. A war-torn hellhole dominated by gangs, megacorporations and alien raiders.

Sometime during their thousand-year voyage, the invaders perished.
But their slaves, the minders, survived to finish the journey to Earth.
Deanne doesn’t believe any of the news about visiting aliens. She’s a felon serving time in a California youth detention center.
As the lights go out and the world falls down around Deanne and her fellow inmates, she discovers something that might hold the key to their survival. Saving Earth will mean risking not only her life, but what makes her human…

When the mad conqueror haunting Elaina's dreams invades her adopted homeland, the real nightmare becomes what she's willing to do to stop him.
The dreaded Hunter Baron has landed on the shores of Mailderet, but Master Tinkerer Elaina Gable believes she has the solution. Giant automatons sit rusting in the valley, waiting for someone with the drive and ingenuity to bring them to life. But the king, swayed by the destruction his ancestors wrought centuries before, harbors a deep-seated fear of the machines. Though he will not allow the alliance of Tinkerers and Smiths to complete the work, Elaina resolves to bring the machines back to life in secret—with the help of a famous airship pilot.
From the safety of the swamps, a woman with silver skin jealously guards the secrets of the automatons. Though the Silver Woman also wishes the past to remain buried, she must weigh the value of secrecy against the thousands of innocents her hesitation might send to the grave.
As they discover the link between the toxic valley and the inner workings of the automatons, Elaina and her allies are drawn into a web of deceit threatening the balance of power across two continents—and proving the truth behind the deadly legends surrounding the Army of Brass.

The Peace Force has a new recruit, and she's driving everyone crazy.
From disobeying orders to handling unauthorised cases, nothing is off-limits. Worse, Harriet Walsh is forced to team up with the newbie, because the recruit's shady past has just caught up with her.
Meanwhile, a dignitary wants to complain about rogue officers working out of the station. She insists on meeting the station's commanding officer ... and they don't have one.
All up, it's another typical day in the Peace Force!