Book excerpt: Three teens ride a car across the universe and back. Look out for the flying saucers! "Tipping his hat to Thomas Pynchon, Jack Kerouac, and Douglas Adams, Rucker immerses readers in a fantastical roadtrip adventure that’s a wild ride of unmitigated joy. . . . he ties everything together with internal consistency, playful use of language that keeps his ideas alien yet accessible, and a solid grounding in fourth-dimensional math. This wacky adventure is a geeky reader’s delight."—Publishers Weekly, starred review