How far will four friends go for immortality? This novel is Hugo and Nebula Award–winning author"Robert Silverberg at his very best" (George R. R. Martin).After Eli, a scholarly college student, finds and translates an ancient manuscript calledThe Book of Skulls, he and his friends embark on a cross-country trip to Arizona in search of a legendary monastery where they hope to find the secret of immortality. On the journey with Eli, there's Timothy, an upper-class WASP with a trust fund and a solid sense of entitlement; Ned, a cynical poet and alienated gay man; and Oliver, a Kansas farm boy who escaped his rural origins and now wants to escape death.If they can find the House of Skulls where immortal monks allegedly reside, they'll undergo a rigorous initiation. But do those eight grinning skulls mean the joke will be on them? For a sacrifice will be required. Two must die so that two may live forever . . ....