Autumn (or) Φθινόπωρο is Greg Austere's favorite spear.
- It is made of Celestial Bronze.
- The spearhead is carved with designs of maple leaves and is made of obsidian (which is detachable)
- It leaves a pinkish aura if waved.
- It is made by two Greek gods, Bia and Zelus with the help of Eurus
It is believed by most campers to be cursed spear because it almost kills most campers when Greg uses it to fight.