"Harriet Wermer is unhappy about having to spend her summer with her grandmother on Marble island until she discovers a mystery involving her Dad from when he was a boy living on the island"--Title verso page.

When the fairy-tale detectives rush to New York City hoping to find an Everafter who can cure Puck, they trigger a chain of events that includes a murder mystery, and learn many new things about their mother who, along with their father, is still in an enchanted sleep.

"When the past and future start mixing with the present, Sabrina and Daphne have their first case to tackle solo-with a little help from the troublemaker Puck. The girls suspect that a rash of magical thefts may be at the root of the problem, but with Mayor Heart's outrageous taxes to pay and Mr. Canis's continuing transformation into the Big Bad Wolf, the Grimms have a lot to worry about and not a lot of time to waste. Can Sabrina and Daphne solve...

When Sky's grandmother is kidnapped, Sky discovers her secret life as an undercover FBAI agent, and embarks on a mission filled with puzzles, codes, and risky adventures to save her.

Twelve-year-old Charlie's analytical skills win him few friends at school, but when the most popular girl in class comes to the makeshift private investigation office in his parent's garage asking Charlie's help to find her missing bird, he and friend Henry begin their first real case.