‘The Rithmatist’ is a fast-paced fantasy adventure, set in a school environment, Armedius Academy. Joel is a wannabe Rithmatist, fascinated by the power chalk can have in their hands. As lowly servant 's child, Joel frequently sneaks into Professor Fitch 's lectures. But when the professor is defeated in a duel by new-comer ex-soldier Nalizar, at about the same time as Rithmatists are kidnapped from their homes, Joel becomes Professor Fitch 's assistant along with his friend Melody, desperate to solve the mystery before any more students disappear.