Rachel and Kirsty must retrieve the magic moonstone which Jack Frost has stolen so that India, the moonstone fairy can prevent nightmares.

"Imagines an alternate 1826 London, where Ada Lovelace (the world's first computer programmer) and Mary Shelley (author of Frankenstein) meet as girls and form a secret detective agency. Their first case involves a stolen heirloom, a false confession, and an array of fishy suspects"--

Neither Cleo nor Evan like the new school librarian, Ms. Crowley, but they are very curious about where she disappears to at the back of the library, so one day they follow her--and find a secret door, a magical library full of locked books, and a letter from the previous librarian telling them that she is trapped somewhere between the covers of one of the enchanted books, and they must travel through the stories in order to save her.

When underwater pirates steal Asa's Moonstone Star, she and her brother Rollo search for it across their vast, flooded kingdom, and along the way face ghosts, sea giants, and secrets about their own past.

Meet Earth's Defender, Carol Danvers, aka Captain Marvel, one of the universe's most powerful Super Heroes, and Kamala Khan, aka Ms. Marvel, who is able to change shape and size and even take the appearance of others! In this book, young readers can learn all about Carol and Kamala and those who fight alongside cosmic Captain Marvel and help protect Earth from evil. Join forces with these marvelous heroes as they fight back against evil alien invaders...