On a senior class camping trip, four girls find themselves lost in the woods, their supplies destroyed, and hunted by a killer.

"A cooking competition goes wrong when a storm traps both the Hardy brothers and a criminal on the small Rubble Island"--

Nancy and her boyfriend Ned visit Coffin Hall to research the library's rumored ghost, but when a fire breaks out and Ned is blamed, it is up to Nancy to find the true culprit.

"Obsessed with facts, Paige sets out to prove to her imaginative neighbor Penn that monsters do not exist, one fact at a time"--

After their shocking discoveries on Summer Island, Marly, Sai, and Isla have one final set of clues to follow before reaching the end of their search.

"There's a new student at Pawston Elementary named Labra-cadabra-dor, and he has a few magic tricks up his sleeve. When Labra hypnotizes Rider to try and pull him over to the dark side, the other pup detectives worry they might have bitten off more than they can chew with this magical mystery!"--

When Rider Woofson and the P.I. Pack arrive at the top of Mystery Mountain, they find their classmates have left, scared away by a snow monster, so the detectives decide it is time to investigate exactly what is so mysterious about this mountain.

Bayport Elementary's detective brothers Frank and Joe Hardy are on the case when someone sabotages the hockey team's lucky charm right before the championship game.

The Alden children and their grandfather are hiking down from Flat Top when a rockslide reveals a cave with a big secret.

Ali Cross is back in the gripping sequel to Ali Cross, the best-selling mystery that introduced readers to detective Alex Cross' son. In Ali's toughest case ever, his friend Zoe is in trouble after Ali and his friends witnessed a crime in Anacostia Park,and it's up to Ali to figure out why Zoe is lying to the police--and who she's protecting.