The "Thea Sisters" are five students at Mouseford Academy who want to become journalists just like their idol and mentor, Thea Stilton. Follow the Thea Sisters' adventures in these graphic novels.

Volume 1 :The secret of Whale Island -- volume 2 : Revenge of the Lizard Club -- volume 3 : The treasure of the Viking ship -- volume 4 : Catching the giant wave -- volume 5 : The secret of the waterfall in the woods -- volume 6 : The Thea Sisters and the mystery at sea -- gvolume 7 : -- A song for the Thea Sisters -- volume 8 : The Thea Sisters and the secret treasure hunt --