Hey Kid, Want to Buy a Bridge? (Time Warp Trio, Bk. 11)

The Time Warp Trio is staying home for once. Joe, Sam, and Fred are going to work on Sam's latest invention, and Joe's got the perfect way to keep The Book from getting lost. But when the guys wind up on top of the half-finished Brooklyn Bridge in 1877, they realize that Joe's fool-proof Book Tracker wasn't so fool-proof after all. Now they've got to make their way through the city and find The Book before they un-invent the light bulb, the phonograph and -- oh no! -- baseball!