Terminal [Tunnels Volume: Book 6]by Gordon, Roderick 

BTSB Prebound(Scholastic, 2013)

BTSB #: 386808 Available

Dewey: FAges: 10-14   
AR: 6.6 MG RC: 6.6 6-8 Lexile: 930

Genres: Adventure Fiction

Subjects: Adventure fiction Underground areas - Fiction Archaeology - Fiction London (England) - Fiction England - Fiction

Summary: Styx and their cohorts of deadly Armagi have swept across England, leaving death and devastation in their wake. Only a miracle can save the day and, in the inner world at the center of the earth, Will and Elliott might just have stumbled upon one as they uncover ancient secrets that are fundamental to all human and Styx life. The sixth and final book in the Tunnels series.