Atria Books, an imprint of publisher Simon & Schuster, signed a three-book deal with Realtime Associates' F. J. Lennon for a series of novels based on Soul Trapper: Episode 1, his "interactive audio adventure" for the iPhone.

In the game, you play as a drifter that uses a Soul Trap device to find, capture, interrogate, and dismiss ghosts scattered across Los Angeles. Soul Trapper takes around three hours to complete, and offers several audio-based minigames throughout its Choose Your Own Adventure-style gameplay.

The iPhone title sold around 25,000 copies since releasing last fall, and could potentially spawn tie-in games with Atria's planned trilogy. Also, the Creative Artists Agency was recently pitching a Soul Trapper film manuscript that was reportedly likened to a "darker, edgier Ghostbusters."

[Via Publishers Weekly.]