Synopsis: Whether testing their own sleuthing abilities by working against the clock or enjoying the intrigue of unraveling the case, readers get lots of spine-tingling mystery in these thrilling puzzlers.

Synopsis: Seventeen-year-old April finds her comfortable life changed forever when death threats to her father, a witness in a federal case, force her family to go into hiding under assumed names and flee the pursuit of a hired killer.

Synopsis: Eight-year-old Nancy Drew has her first case to crack! Can you help?Nancy and her two best friends, George and Bess, are so excited! They have been invited to Deirdre's sleepover party! There will be pizza, cake, and even a pajama fashion show. But the most exciting thing is that the party has a City Girls doll theme. All of the guests are bringing their dolls with them!But then Deirdre's City Girls doll -- Hollywood Heather -- goes missing. Is…