Sam Neill, Sophie McBride, Tom Cameron, Leon Wadham and Oliver Driver  signed on to star in Jonathan King’s Under the Mountain, which is currently in production.

The story is about teenage twins who investigate a creepy old house next door, they discover shape-shifting creatures that lurk beneath a ring of extinct volcanoes in a subterranean world.

Under the Mountain a teen fantasy is set to be adapted of the same name by author Maurice Gee.