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.

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.

Eleven-year-old Princess Celie lives with her parents, the king and queen, and her brothers and sister at Castle Glower, which adds rooms or stairways or secret passageways most every Tuesday, and when the king and queen are ambushed while travelling, it is up to Celie--the castle's favorite--with her secret knowledge of its never-ending twists and turns, to protect their home and save their kingdom.

Prince Lucas and his best friend Clara discover a ghost haunting Wrenly Castle.

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

Moving to a Scottish castle allows seventh-grader Callie to escape friendship problems in San Diego, but finding new friends, even in the birding club an old journal inspires her to join, proves challenging.

"After traveling to the seaside kingdom of Lilah's betrothed prince, Lulath, Celie and her companions are busy training griffins, enjoying wedding festivities, and finishing construction of a grand ship built from parts of the Castle. But on their maiden voyage, the Ship steers them far off course into uncharted waters"--

The Strega-Borgias make one last stand to defend their home against invaders who seek the Chronostone--and one little baby who may not be what he appears.

When their cousin becomes trapped in Transratania, Geronimo's sister Thea involves him in her rescue mission.