This serpentine dragon has skin the color of deep volcanic rock, enormous claws, and jagged, stonelike horns and scales.
Very Young Underworld Dragon CR 5
Speed 40 ft., burrow 30 ft., fly 150 ft. (average)
Melee bite +11 (1d6+4), 2 claws +10 (1d4+3)
Space 5 ft.; Reach 5 ft. (10 ft. with bite)
Special Attacks adamantine claws, breath weapon (40-ft. line, 4d6 fire damage, DC 15)
Str 17, Dex 12, Con 15, Int 12, Wis 13, Cha 12
Base Atk +6; CMB +8; CMD 19 (+23 vs. trip)
Feats Improved Initiative, Skill Focus (Stealth), Weapon Focus (bite)
Skills Appraise +10, Climb +12, Fly +3, Intimidate +10, Knowledge (dungeoneering, geography) +10, Perception +10, Stealth +17
Languages Common, Draconic
The claws of an underworld dragon are made of adamantine, and have the qualities of a weapon made from that material.
A very young and older underworld dragon can see perfectly in smoky conditions (such as those created by pyrotechnics).
Environment any underground