Before the seven Sentinels, there was one. Callum Pendragon is a knight in training. Heir to the throne of Camelot, the young prince is faced with the sudden duty of defending his kingdom after darkness converges. But when Callum awakens over a thousand years later to find the battle long over, his destiny has just begun. Thrown into the 1940s during World War II, Callum is tasked to stop an evil organization from wreaking global destruction. Armed with an indestructible shield, and the legendary sword Excalibur, the knight out of time is given another chance to fight, and to keep a promise. (Mythoverse Book 1)