Media Rights Capital has picked up feature rights to Amanda Hocking's self-published Trylle trilogy with plans to develop the supernatural tale into two films.

District 9 screenwriter Terri Tatchell is set to write the two scripts.

"Switch", the first book of the trilogy, centers on a teenage girl who discovers that she may not be human and finds herself in a world she never knew existed -- a world both beautiful and frightening in which she's unsure she wants to be a part of it.

No production date has been set.