Theodosia follows 14-year-old Theodosia Throckmorton, aka Theo, a smart, witty, supernaturally gifted teen girl who just wants to fit in and have a normal life. Theo’s life is anything but normal though. The daughter of two intrepid Egyptologists excavating in the Valley of the Kings, Theo lives in the world-famous Museum of Legends and Antiquities in the heart of Edwardian London. When you live in a museum filled with cursed Egyptian artifacts, things can get weird and you just have to learn to roll with it. Theo and her brother, Henry, along with friends Will and Safiya, battle with ancient forces, dark magic, and comic chaos, all while trying to survive teenage life, get through school, and save the world.