"Crulus" is a very densely plotted coming-of-age debut horror novel, thirteen years in the making, brimming with Welsh lore and a weird sense of humor, employing familiar urban fantasy tropes and transforming them into a singular tale of mythological, occasionally surreal, supernatural horror.
The cast is large, the resolution complex, the way there labyrinthine; yet the author manages to offer a solid horror story of good versus evil, refraining from easy solutions and cheap gimmicks, insisting on including real-life complications (from alcoholic mothers and cruel teachers to two-faced friends and intimidating bullies). Ultimately though, this is a story of occult horror, figuring a magic book, a speaker to the dead, detailed rules of the afterlife, monstrous spirits, and evil soul-snatchers. Set in a small town in Wales, it focuses on Dylan, a precocious eleven-year-old, who's forced into a battle between a body-jumping evil (the titular "Crulus") and Dylan's friends and family. Standing out among them is Fiona, a copper with smarts and heart, who catches on almost immediately on what's been happening, and allies herself with Dylan, speeding up the plot and driving the story forward.
There are a couple of things I would have appreciated seeing them included in the book: first of all, a list of the characters populating the story; they are too many, some of them too similar to each other, several others given the spotlight for too brief a time. Secondly, a list of the rules governing the afterlife: again, there's a lot of them, never given beforehand, often presented unfairly as plot-twists. Though this approach ties in perfectly with Dylan's own road of discovery, it does make for a messy reading experience, as one has to piece everything together on their own, with no breather allowed in the story. That said, the author's choice to include a short, reader-friendly explanation of Welsh idioms appearing in the book was brilliant, and the same can be said about the list of songs mentioned and employed, in fact, as chapter titles.
Overall, the book is a very intelligent take on the familiar story of a group.of schoolchildren facing a sinister entity which is taking advantage of its victims' psychological and physical weaknesses. The supernatural elements cohere together in a wildly inventive way, and the fast-pacing suits this occult adventure perfectly! Recommended!