As Tanner, Gwen, and their Beasts Firepos and Gulkien continue their search for the pieces of the Mask of Death, they face betrayal from Gwen's twin brother Geffen, and discover a new Beast-Rider pair--Castor and Nera.
Record details
ISBN:0545361583
ISBN:9780545361583
Physical Description:print 170 p. --
Publisher:New York : Scholastic Press, [2012], c2010.