Author Edward Packard, who helped create the famous Choose Your Own Adventure book series and wrote many of its titles (including The Cave of Time), has worked with Simon & Schuster and Expanded Apps to start a new line of interactive e-books for the iPhone/iPad called U-Ventures.

The new series looks to adapt, revise, and expand the classic Choose Your Own Adventure books, adding "sound, light, and other special effects, even music and alien voices." The revamped novels will also feature more variations, endings, and "special situations."

The first U-Ventures release is Return to the Cave of Time, which is already available through the App Store for $3.99. Simon & Schuster expects to release at least two more e-books, Through the Black Hole and The Forbidden Castle, this summer and fall, respectively.