Men in Black meets The Westing Game when Ben's school project uncovers a secret society whose aim is to keep sneaks--mischievous interdimensional sprites--from slipping into our universe! What starts as a boring class project takes an intergalactic turn when Ben, Akemi, and Charlotte discover that the elderly woman they've been assigned to interview is a member of the super secret Gateway Society--and she's in trouble. Agatha gives them a box to keep safe and then disappears! Of course they open the box--and learn about Sneaks: interdimensional malsprites that can slip through the seals between worlds and wreak havoc. The Gateway Society usually handles Sneak attacks, but Sneaks are converging on the town in alarming numbers, and they are after the notebook and strange statue the kids found in Agatha's box. And they want something else too: to pull a more dangerous creature through the seal. Can three misfit kids work together to decode the notebook and stop an intergalactic takeover? Can they find Agatha? Can they get their class project done on time? This funny, fantastical adventure will leave readers checking under their beds for Sneaks that go bump in the night.