Castle Glower

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.

"Castle Glower's towers have transported Princess Celie, her siblings, and her pet griffin, Rufus, to an unknown land. As they set out on a dangerous adventure to discover their whereabouts, they find an entire lost people, divided by the wishes of two wizards in a centuries-old quarrel over their beloved home--Castle Glower"--

This bestselling series comes to a rousing conclusion as Celie and her family set sail on a ship made from their beloved Castle! After constructing a grand ship built from parts of the Castle, Celie, Lilah and Rolf are ready to set sail! But on its maiden voyage, the Ship steers them far off course into uncharted waters. Celie and her sister, Lilah, hope that the Ship is heading to the ancient island where unicorns once roamed, but as the journey...