Environment: Warm marshes Organization: Wyrmling, very young, young, juvenile, and young adult: solitary or clutch (2–5); adult, mature adult, old, very old, ancient, wyrm, or great wyrm: solitary, pair, or family (1–2 and 2–5 offspring) Challenge Rating: Wyrmling 3; very young 4; young 5; juvenile 7; young adult 9; adult 11; mature adult 14; old 16; very old 18; ancient 19; wyrm 20; great wyrm 22 Treasure: Triple standard Alignment: Always chaotic evil Level Adjustment: Wyrmling +3; very young +3; young +3; juvenile +4; others —