When a long-lost Renaissance painting is unveiled at an art gallery, three young detectives uncover more than they bargained for.
"The Knight’s Oath" appears to be a masterpiece, but George quickly notices discrepancies that reveal it’s a forgery. With his friends Thomas and Emily, they dive into a thrilling investigation, following a trail of cryptic clues and historical puzzles. But as they dig deeper, they uncover a dark secret hidden within the original painting, one that’s been buried for centuries and could cost them everything.