Dark Sun: The Scorched World of Athas
Midway between Altaruk and Ledopolus stands a mud-brick fortress built over a natural spring. Because surface water is rare anywhere on Athas, Grak’s Pool is a welcome stop for travelers. Grak, a Half-Elf warrior of some renown, commands a band of mercenaries based here. He allows visitors to set up camp around the outskirts of his fortress, but his water is not free.
Below the fortress and the spring, a foundation of older ruins extends beneath the stony barrens of the surrounding landscape. Grak and his mercenaries have explored only a portion of these tangled, echoing tunnels. Spine-chilling roars sometimes echo up from the deep passages below Grak’s Pool. Their awful resonance has been sufficient to keep the mercenaries from venturing too far beneath the fortress.