The Medieval Mishap

From BoardGameGeek:

Agent Lance Steele is Deputy Director of the secretive organisation known as the Ministry of Time, and he's having a tough day. His newest Junior Agent has gone missing on their very first assignment. They were sent back in time to investigate a strange anomaly in Medieval England, and nobody has heard from them since. The only clues are some coded parchments, cryptic journals, bizarre devices, and an unmarked map of… somewhere? Steele suspects there are dark forces at work. And that's where you come in. The Medieval Mishap is an immersive puzzle adventure contained entirely in one package. Input your answers on your device, while you play the game in the real world, with beautifully-produced puzzles and your own wits.