Leo never imagined that time travel might really be possible, or that the objects in H. G. Wells’ science fiction novels might actually exist. But then a miniature time machine appears in Leo’s bedroom, and he recognizes one of the tiny riders: himself! His search for the time machine and his fate leads him to the New-York Circulating Material Repository, a magical library that lends out objects instead of books. Hidden away in the Repository basement is the Wells Bequest, a secret collection of powerful objects straight out of classic science fiction novels: robots, rockets, submarines, a shrink ray—and one very famous time machine. And when Leo’s adventure of a lifetime suddenly turns deadly, he must attempt a journey to 1895 to warn real-life scientist Nikola Tesla about a dangerous invention. A race for time is on!