Mysterious Castle

Ready to escape the bustling city life in Sacramento, California, Dr. Bob Bannard travels with his family to view some acreage for sale, over the Sierra Nevadas on the east side of Lake Tahoe. Wandering about to amuse themselves while their parents talk with the realtor, the three teens happen upon a castle hidden in one of the many castle-like rock formations in the area southwest of Virginia City. Although the concealed drawbridge is up, they have hopes of getting inside IF they can convince their father to buy the property. The solitude of the hilltop location and the distance from civilization is exactly what the Bannards want.
The teens secretly explore the castle after they figure out how to release the drawbridge. Brittani, the eldest sibling, encounters an invisible male presence, a ghost? She discovers some of the mysteries of the castle, such as powerful protective amulets, tapestries that can show the future, and paintings that can be entered as portals to the past and future for adventures in Europe. Their escapades include time-travel throughout England, dragons, knights, battles and rescues, and interaction with Camelot's royalty long forgotten by the world.