When their father is kidnapped and danger looms, the Strega-Borgia children, their mysterious new nanny, and a giant tarantula use magic and actual trips through the Internet to bring peace to their Scottish castle.

After discovering a giant egg in the magical Castle Glower, Princess Celie agrees to care for the egg and what creature it hatches.

While visiting Wallis's castle, Dink and his friends investigate strange noises that lead them to a dangerous secret.

The Alden children have another mystery to solve when they visit a castle and must figure out which of the guests has stolen the Stradivarius violin.

In their magic treehouse, Jack and Annie are again transported to King Arthur's realm, where invisible beings, giant ravens, and mistaken magic spells have a duke's castle in an uproar on Halloween night.

Ibb, curious about the lone castle in her town, forms a long-distant friendship with the guard and, despite warnings there is something fearful inside, accepts his invitation to enter.

In 1965 Rome, aspiring actress Silvia Whitford seeks out the Italian aunt she's never met who lives in a crumbling castello where Silvia gets cast in a new horror movie, but when her aunt disappears, the film's make-believe terrors seep into reality, revealing a growing menace.

"In 1865, orphaned Daisy Francois takes a housemaid position and finds that the eccentric Gothic authoress inside hides a story more harrowing than those in her novels. Centuries later, Cleo Clemmons uncovers an age-old mystery, and the dust of the old castle's curse threatens to rise again, this time leaving no one alive to tell its sordid tale"--

Ready (The Fall in Love Checklist) whisks readers to the South of France for a saucy enemies-to-lovers romance. Merry DeLuca is in desperate need of a getaway after her best friend and secret crush, Leo, marries her sister. She takes off for a three-month stay at a chateau in Annecy, France--only to arrive and find that Leo's insufferable friend, travel documentarian Noah Wright, is also staying on the estate. Merry is there looking for a meaningless...

When the dangerous ancient wizard Arkwright escapes the dungeon and goes missing within the Castle, Princess Celie must find the wizard and save her family.