The series "39 Clues" is my favourite series. It so far includes seven books "The Maze of Bones", "One False Note", "The Sword Thief", "Beyond the Grave", "The Black Circle", "In Too Deep" and "The Viper's Nest". There are many authors.
Easier, 10 Qns, C_Baz,
Jun 07 12
Category:
39 Clues