The first novel in a trilogy by Manon Steffan Ros for teenagers with three lively characters at the centre of the story.

Stori am TRIO, grwp o ffrindiau sy'n caru antur ac sy'n benderfynol o achub y byd - wel, Cymru o leia'! Y nofel gyntaf yng nghyfres newydd Manon Steffan Ros gyda lluniau gan Huw Aaron!