Sir Thursday

After adventures in the Border Sea, Arthur and Leaf return home, but only Leaf makes it through the Front Door as someone has assumed Arthur’s identity. Arthur is then drafted into the Glorious Army of the Architect, battling against the ongoing Nithling invasion within the Great Maze of the House. While Leaf works to banish Arthur’s doppelganger on Earth, Arthur must navigate basic training, avoid perilous assignments, and uncover secrets to free Part Four of the Will and secure the Fourth Key, all amidst a mounting threat to the universe.