Tom and his friends get to the bottom of a practical joke gone wrong in this fifth novel in Tom Swift Inventors’ Academy—perfect for fans of The Hardy Boys or Alex Rider.It’s another day at the Swift Academy when Tom starts finding little troll-like figures around campus. And he’s not the only one. Much to the amusement and curiosity of students, these dolls are appearing all over the school. But even after they’re collected by faculty, a second wave mysteriously appears—except these replacements record audio and play it back for surrounding listeners. Before everyone knows it, secrets and gossip are revealed across campus, and suddenly the figures aren’t nearly as fun as they used to be. Wh...