"Harriet Wermer investigates more mysteries during her stay on Marble Island"--

"After buying a strange old wardrobe, Adam Caine and his mom are confronted by an old woman who claims that it belongs to her. The store owner explains that "The Witch" has been shouting curses at people for years but is harmless. However, when the movers are delivering the wardrobe, the door suddenly swings open and out falls the old woman--dead! How did she end up inside the wardrobe? More importantly, what happened to her?"--Title verso page.

"Rebecca Zamolo is on a mission to save her summer. Instead of going to camp like she'd planned, she's been stuck in summer school. But today is the day! She's going to present her final science assignment--using her Nana's borrowed vintage zoetrope--and then she'll be free to have fun. But as Becca and her classmates wait for her teacher to arrive, a menacing voice comes over the intercom claiming to be the Game Master! The kids quickly discover...

"A reenactment leads to the death of Bayport's biggest benefactor, and the Hardy Boys get involved, especially when a favorite teacher turns out to be a prime suspect."--

"Aidan disappeared for six days. Six agonizing days of searches and police and questions and constant vigils. Then, just as suddenly as he vanished, Aidan reappears. Where has he been? The story he tells is simply...impossible. But it's the story Aidan is sticking to. His brother, Lucas, wants to believe him. But Lucas is aware of what other people, including their parents, are saying: that Aidan is making it all up to disguise the fact that he ran...

After summer break Anastastia and Edie are back at their boarding school, Knight's Haddon, but the friendship they forged last year is threatened by the arrival of a new girl, Janet, who befriends the orphaned Edie--but when Edie begins to think that Janet may not be exactly what she seems to be, events take a dangerous turn.

Nine-year-old Hilde Lysiak is an aspiring reporter with her own newspaper, the Orange Street News, and she is investigating break-ins and missing baked goods--and with the help of Zeus, a little dog with a big bark, she intends to track down the thief who is trying to steal a win in the Bake-Off Bonanza, one of Selinsgrove's biggest events.

"Joe and Frank's winter break skiing holiday turns to horror when a series of deadly mishaps threaten their resort."--

On an island nation in the Indian Ocean, the explorers venture through a vast underwater world and take part in a friendly robotics competition. But the tides of good fortune change quickly. Suddenly, Team Cousteau jumps into action to rescue a faculty member from the brink of death. Meanwhile, the team follows the Cruz's mother's clues to a magnificent tomb and center of spirituality precariously perched on the side of a cliff. There, Cruz is confronted...

Middle school journalist Samantha Sanderson and her tech-savvy friend Makayla investigate the disappearance of their friend Tam Lee.