Del’s older sister can also walk between worlds, but her loyalties are uniquely tested in this original enovella set in the inventive world of Dissonance.Addison Sullivan, Del’s older sister, has always...

In this inventive romantic thriller, Del has the power to navigate between alternate realities—and the power to save multiple worlds.Every time someone makes a choice, a new, parallel world is spun off...

As a Walker between worlds, Del is responsible for the love of her life—and the fate of millions—in this thrilling sequel to Dissonance. As School Library Journal raves, “O’Rourke brilliantly builds an...