Whitley Strieber’s Alien Hunter: Underworld is a worthy successor to his first Alien Hunter novel, but it’s not necessary to have read the first book to enjoy this one. The phrase “crackerjack yarn” comes to mind, and I use it without irony, because Alien Hunter: Underworld is just that: science fiction alien criminals being chased by a tough cop with a troubled past, with plenty of technology, action, and things that explode in the mix.
Flynn Carroll is a former Texas cop whose wife was abducted by aliens and never returned, and he has become obsessed with tracking down similar cases. The perpetrators are not the Greys; they are the minions of a criminal runaway from the planet Aeon. Carroll has been recruited by a secret unit of the CIA to bring them to justice, but his methods are too deadly for the liking of either his earthly superiors or the Aeon police, who offer scant support, except to send a rather officious female officer bearing an uncomfortable resemblance to Carroll’s late wife.
The alien psychopath has created a cadre of murderous biorobots to do his dirty work. They have an ever-increasing ability to regenerate themselves and to morph into simulacra of their human victims, and Carroll—who has developed an uncanny speed, especially with a gun—seems to be the only human who can deal with them. His speed puzzles even him, and leads him to pursue the dark secrets of the Deer Island research facility, where he finds that doors to his past and doors to other worlds are both hidden. He brings along his Texas buddy Mac Terrell, a man who operates on both sides of the law and who has many useful abilities.
My only quibbles with the novel are (1) the "underworld" aspect doesn't really arise until toward the end, and (2) that it is occasionally difficult to envision the often-exotic physical settings through which Carroll is adventuring, but the fast pace carries one through. This is reportedly in development as a TV series, and a good director and cinematographer will eliminate any problem in this area. I look forward to the series, and to the third installment in the Alien Hunter saga.