Environment: Cold mountains 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 Ratings: Wyrmling 2; very young 3; young 4; juvenile 6; young adult 8; adult 10; mature adult 12; old 15; very old 17; ancient 18; wyrm 19; great wyrm 21 Treasure: Triple standard Alignment: Always chaotic evil Level Adjustment: Wyrmling +2; very young +3; young +3; juvenile +5; others —