Solve the mystery with the Secret Seven everyones favourite detective club! This fantastic bumper collection contains Secret Seven books 10-12, with illustrations by Tony Ross.

Book 10: Puzzle For The Secret Seven (first published in 1958)
In book ten, the gang witness the horror of a house going up in flames. Then theres the theft of a very valuable violin. Are the two incidents connected? The Seven mean to use all their detective know-how to find out!

Book 11: Secret Seven Fireworks (first published in 1959)
In book eleven, Jacks little sister, Susie, is so annoying! The Secret Seven are furious when they discover shes formed her own detective gang! Then some money is stolen, and Susie is a chief suspect. The Seven cant quite believe it Susie wouldnt do anything that bad would she?

Book 12: Good Old Secret Seven (first published in 1960)
In book twelv