DOUBLE TAKE (4.5) by Jenness Walker: When the bus he's on is robbed and a hostage taken, Cole is amazed at how closely it follows the book he's reading. From the plot, Cole knows where the victim, Kenzie, is and rescues her, and continues to come to her aid each time she's in danger. But although they're drawn to one another, their pasts seem destined to keep them apart. When the plot starts to deviate from the book, however, they discover they must put their pasts behind them if they are to survive. The action starts off right away and doesn't let up. Plenty of suspense and a satisfying resolution make this a terrific mystery.