The entrance to Thais Dragon Lair is situated north from Thais on third level under ground ( here). Although the route is a little bit complicated you probably won't encounter any creatures apart from Trolls and Rotworms. The route is explained in Naginata Quest spoiling information. If you're the owner of dark mansion this is a great hunting ground for you, since it's easily accesible from the basement so you can make a quick trip to the house to drop loot and gather supplies.
Thais Dragon Lair you can find 3 Dragon Lords (one spawns near the center of the cave, this one spawns REALLY fast, and two in the quest room), 2 Dragon Lord Hatchlings spawning in the northeast corner and 3 Dragons and 4 Dragon Hatchlings spawning all over the room. The dragon lord boss Demodras may rarely spawn as well.
It's a good hunting place for mid-level Free account players.
Spoiler warning: Quest and/or game spoiling details follow. (
: hidden content)
takes place there.
Spoiler ends here.
0-105 gp, 0-3 Dragon Ham, Steel Shield, Crossbow, Dragon's Tail, 0-10 Burst Arrow, Longsword (semi-rare), Steel Helmet (semi-rare), Broadsword (semi-rare), Plate Legs (rare), Green Dragon Leather (rare), Wand of Inferno (rare), Strong Health Potion (rare), Green Dragon Scale (rare), Double Axe (rare), Dragon Hammer (rare), Serpent Sword (very rare), Small Diamond (very rare), Dragon Shield (very rare), Life Crystal (very rare), Dragonbone Staff (extremely rare).
0-245 gp, 0-5 Dragon Ham, Green Mushroom, Book (Gemmed), 0-3 Royal Spears, 0-7 Power Bolts, Energy Ring, Small Sapphire, Golden Mug (semi-rare), Red Dragon Scale (rare), Red Dragon Leather (rare), Strong Health Potion (rare), Life Crystal (rare), Strange Helmet (very rare), Fire Sword (very rare), Royal Helmet (very rare), Tower Shield (very rare), Dragon Scale Mail (very rare), Dragon Lord Trophy (extremely rare), Dragon Slayer (extremely rare).
Dragon Claw (always), 0-10 Platinum Coins, 0-10 Dragon Ham, 0-7 Green Mushrooms (semi-rare), 0-10 Power Bolts (rare), Red Dragon Leather (rare), Small Sapphire (rare), Energy Ring (rare), Book (Gemmed) (rare), Great Mana Potion (rare), Great Health Potion (rare), Golden Mug (rare), 0-5 Onyx Arrows (very rare), Dragon Scale Mail (very rare), Fire Sword (very rare), Life Crystal (very rare).