The Roar - Audio CD - Unabridged Author:Emma Clayton, Jane Collingwood (Narrator) Mika lives in future London, behind The Wall: Solid concrete topped with high-voltage razor wire and guarded by a battalion of Ghengis Borgs, it was built to keep out the animals, because animals carry the plague. Or so Mika's been told. — But ever since Ellie vanished a year ago, Mika's suspected his world may be built on secrets -- and ... more »lies. When a mysterious organization starts recruiting mutant kids to compete in violent virtual reality games, Mika takes the chance to search for his twin sister -- and the truth.