Studios continue the search for the next great teen franchise to fill the void left behind by Harry Potter and Twilight. Today, two novel series have been picked up for film adaptations. BZRK, by author Michael Grant, has been acquired by Sony Pictures as the first of a trilogy for Sam Raimi and Josh Donen at Stars Road. The premise pits a team of guerilla-group teenagers against supervillain conjoined twins, with both sides battling it out through the use of nanobot warriors.

The wildly successful House of Night series by mother-daughter authors P. C. Cast and Kristin Cast has been acquired by Samuel Hadida of Davis Films. Firmly entrenched in vampire mythology, the series follows teenager Zoey Redbird as she journeys to the House of Night boarding school where she is trained to survive as an adult “vampiyre.” Hit the jump for more on both projects.