Title in This Set:The Secret Seven Collection 1:Book 1: The Secret SevenBook 2: Secret Seven AdventureBook 3: Well Done, Secret SevenThe Secret Seven Collection 2:Book 4: Secret Seven on the TrailBook 5: Go Ahead, Secret SevenBook 6: Good Work, Secret SevenThe Secret Seven Collection 3:Book 7: Secret Seven Win ThroughBook 8: Three Cheers, Secret SevenBook 9: Secret Seven MysteryThe Secret Seven Collection 4:Book 10: Puzzle For The Secret SevenBook 11: Secret Seven FireworksBook 12: Good Old Secret SevenThe Secret Seven Collection 5:Book 13: Shock for The Secret SevenBook 14: Look Out, Secret SevenBook 15: Fun for The Secret SevenDescription: The Secret Seven Collection 1:Book 1: The Secret SevenIt's their first adventure and the Secret Seven super-sleuths are already on the trail of a mystery! The gang are dressed in disguise, following a lead to a spooky old house in the snow...Book 2: Secret Seven AdventureWhen a priceless pearl necklace goes missing the Secret Seven are first off the mark to catch the thief! Why? Because they saw him making his escape! Now all they have to do is find the necklace ...Book 3: Well Done, Secret SevenThe Secret Seven have a new meeting place - a treehouse! But someone else is using it too. The gang are furious, but then they learn the intruder is in big trouble and needs their help. Can the Seven come to the rescue ...?The Secret Seven Collection 2:Book 4: Secret Seven on the TrailSomething mysterious is going on at Tigger's Barn, and the Seven are intrigued. When Jack overhears a strange conversation, it's time for the Seven to leap into action ...Book 5: Go Ahead, Secret SevenWhat exactly is the sinister-looking man up to and why does he want to get George into trouble? Will the Seven get to the bottom of the mystery before it's too late?Book 6: Good Work, Secret SevenA car is stolen and Peter and Janet are the only witnesses. But have the Seven got themselves too deep into a mystery that is beyond their powers to solve?The Secret Seven Collection 3:Book 7: Secret Seven Win ThroughThe Seven have a fantastic new hiding place. But someone else is using it at night - and it's Jack's little sister Susie who helps them catch the intruder.Book 8: Three Cheers, Secret SevePeter and Jack see a gas-fire alight in one of the rooms when they search for their lost aeroplane in the garden of an abandoned house. Who is hiding there and why?Book 9: Secret Seven MysteryA girl runs away from home - and it's up to the Seven to find her! Jack's little sister Susie is up to her usual tricks - but she can't put the Seven off the trail of clues!The Secret Seven Collection 4:Book 10: Puzzle For The Secret SevenIn book ten, the gang witness the horror of a house going up in flames. Then there's 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 FireworksIn book eleven, Jack's little sister, Susie, is so annoying! The Secret Seven are furious when they discover she's formed her own "detective gang"! Then some money is stolen, and Susie is a chief suspect. The Seven can't quite believe it - Susie wouldn't do anything that bad... would she?Book 12: Good Old Secret SevenIn book twelve, there are strange happenings indeed at Torling Castle! Someone is hiding out in t