2-3 Basilisks will be in the lair, AC4, HD6+1, hp24,33,26, at1, D1-10, SA:petrification)
The Treasure: 1,000pp, 4,000gp, 7,000sp, 3,700ep, 7,000cp, a 15gp chest with 7 gems: 4 tiger eyes (3x9gp, 5gp), a Pearl (1,000gp), a peridot (500gp), and a Corundum (1,000gp).