Happy book birthday to GR link by Jeff VanderMeer!
An epic about three friends on a quest to protect the world from a threat as unknowable as it is terrifying. Jonathan Lambshead stands to inherit his deceased grandfather’s overstuffed mansion—a veritable cabinet of curiosities—once he and two schoolmates catalog its contents. But the three soon discover that the house is filled with far more than just oddities: It holds clues linking to an alt-Earth called Aurora, where the notorious English occultist Aleister Crowley has stormed back to life on a magic-fueled rampage across a surreal, through-the-looking-glass version of Europe replete with talking animals (and vegetables). Swept into encounters with allies more unpredictable than enemies, Jonathan pieces together his destiny as a member of a secret society devoted to keeping our world separate from Aurora. But as the ground shifts and allegiances change with every step, he and his friends sink ever deeper into a deadly pursuit of the profound evil that is also chasing after them.