Step into the worlds outside our own as Lucy Eberslee must find a way to stop a dangerous force that threatens the fate of the eight worlds in Caroline Carlson's latest middle grade novel.What begins as a rather unremarkable Tuesday quickly turns to disaster when Lucy, the Gatekeeper's deputy, discovers that her boss has vanished and the door connecting Lucy's world to the next world over is broken - and it all might be Lucy's fault. To save the Gatekeeper and set things right, Lucy must break the rules for the first time ever and journey with an otherworldly boy, a suspiciously sneaky girl, and a crew of magical bees into the seven worlds beyond her own.But Lucy isn't the only one breaking the rules. As curiosities and dangers gather around her, she learns she's up against a sinister force that's playing with the delicate fabric of time and space, no matter what the deadly costs or consequences. Lucy's never had to save the world before - and now, somehow, she's got to find a way to save eight of them.