Four children set off together one stormy December day on an imaginary quest to find King Arthurs famous sword, Excalibur. They have no idea that they will end up lost and on the adventure of a lifetime. Led by the eldest, Timothy, the three other childrenDiane, Mark, and Joanare no strangers to excitement; even so, nothing could prepare them for the mysterious, secret castle hidden deep in the dark forest near home.
The childrens imaginations could never have conjured the monstrous dragon living in the ruins of the castle. As they face a series of terrifying battles between the forces of good and evil, the children find themselves investigating a local mystery, discovering an ancient prophecy, and recognising the part each must play in the fight against evilespecially if they want to save others from danger.
In this thrilling adventure into mythology and dreams, four children must rely on their strongest qualities toughness, solidarity, tenderness, ingenuity, perseverance, and couragein order to save the day. They will learn that every hero must play his or her part in the battle against evil.