SpellCrash takes up Ravirn's story immediately where last years MythOS left off, with his return to his native pantheoverse accompanied by the newly released Fenrir, the wolf of world's end, his sidekick, the webgoblin Melchior, and Laginn, the disembodied and animate hand of the Norse god, Tyr. All is not well back home, however: Necessity, the supercomputer goddess charged with keeping order in the multiverse, still seems to be broken, or even worse, going mad, and the prime movers of creation are manoeuvring to replace her. Seeing as the ascension of any of these to ultimate power would make the remainder of his existence unpleasant and short, followed by an eternity suffering the tender mercies of Hades, who hasn't forgiven him for freeing Persephone from his clutches, Ravirn has little choice but to take up the challenge of fixing the multiverse himself - if only so he can leave it and return to his beloved Tisiphone, who chose freedom from the rage of a fury, at the cost of exile from home, at the end of last book.
All the ingredients in McCullough's series so far are here in this final volume: mixtures of magic and hacking, witty exchanges with a variety of mythological characters, a likeable hero with a stalwart sidekick - even if he is a short, purple goblin, desperate straits, cunning plans, hairsbreadth escapes, and triumphs against the odds. If you've liked the other instalments of Ravirn's adventures, there's no doubt that this will hit the spot, and you'll enjoy the return of some old-favourites: Dave, Mort and Bob, the three heads of Cerberus, and Eris, goddess of Discord, not least among them.
It's always sad for a fan when an author decides to bring a series to an end, and there's a tendency to rail against it and want the characters' adventures to just continue, but there's a good deal to be said for calling it a day while everything is still fresh and novel. Thus, while I can't help but wish that Mr McCullough might take Ravirn to visit the Hindu mythos, or the Buddhist one, say, I have to admit that now he's saved his universe, there's not much more for him to do, and so I wish him well in his retirement, and look forward to seeing if Mr McCullough's next work can match the level of this one.