Source: Isles of the Shackles, pg(s). 35
The grim mining town of Chalk Harbor is the only functioning settlement on Whyrlis Rock island in the Shackles. The town is the base of operations of the slaver Alahandra Boisich, rumored to have once been a powerful baroness of Cheliax. The ruthless Alahandra captains the barkentine Cloudbuster's Dream.
There is no wildlife around Chalk Harbor save for bands of earth elementals and the few clusters of crysmals that lair underground, and no one can eat the sparse blighted crops that grow from the rocky soil. Water is drawn from the Elsewhere River, but all food is supplied by other islands and paid for by Alahandra.