It's spring break and a visit to the Alderman farm leads to another exciting adventure in Camelot. Marcus, the elfin mage known as the Keeper, has been captured by Bellator, the mightiest of the twelve Immortals. Bellator is holding Marcus for ransom until Excalibur, the sword blessed by the Creator, is returned to him, but no one knows where the sword is located. Was the final prophecy of Venus given to provide hope in times of darkness or was it intended as a warning? Is Ben really the chosen one? Will he save Camelot... or destroy it?