Great mysteries for teens.
When Hayley's brother, a demolition expert, is reported killed in an explosion in Siberia, Hayley and her brother's fiancee investigate.
Sally Lockhart ventures into the shadowy underworld of Victorian London on the trail of a legendary ruby.
Sammy decides that camping is overrated, until she has a mystery on her hands involving an injured condor.
Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.
Why does Branwell stop speaking the day that he calls 911 to report that his baby sister has stopped breathing?
Chris is sure that his missing baby sister isn't dead, but he must find evidence to prove it.
Katie and George find themselves in the middle of a mystery when they must start attending a bizarre new school.
One by one, guests are being murdered on a mysterious island and those remaining realize the killer is among them.