Christopher Rowe is shipwrecked in Devonshire, where children are disappearing and a ghost is suspected, but even Tom and Sally's arrival may not cure his amnesia in time to help.

Joe King Oliver was one of the NYPD's finest investigators, until, dispatched to arrest a well-heeled car thief, he is framed for assault by his enemies within the NYPD, a charge which lands him in solitary at Rikers Island. A decade later, King is a private detective, running his agency with the help of his teenage daughter, Aja-Denise. Broken by the brutality he suffered and committed in equal measure while behind bars, his work and his daughter...

Nate the Great goes to San Francisco to solve a mystery with his cousin, Olivia Sharp, who is also a detective.

Investigating a classmate's claim that he saw a ghost backstage while rehearsing for the school play, Kaz and Claire, harboring suspicions that the ghost may be Kaz's mom, discover compelling evidence of otherworldly activities.

When cousins Mike and Kate go to Kansas City for the All-Star game, they meet the son of the American League starting catcher who stands falsely accused of playing practical jokes on his All-Star teammates.

Siblings Amy and Dan must find another way to outwit the Vespers when they target and kidnap Dan's only friend, eleven-year-old Atticus.