This book is a fantasy novel that tells the story of noble brothers Arthur and Kyle, as well as their grave-sweeping adventure companions Thor, Daniel Lance and Gwen, who go to the city of Albion to find the legendary Black Knight who has done all evil. On the way, unworthy warriors Keira, wizards Merlin, Peter and Thor joined their team one after another. When they arrived at the city of Albion, they were involved in a melee with the local lord's army and people. In the chaos, Arthur accidentally pulled out the sword in the stone, which is said to be owned only by kings. It turned out that he was the orphan of the former king, and the black knight was originally Merlin's sister dressed up to rob the rich and give to the poor, but the god of death pretended to be black...