Tamah was petrified by a basilisk while fighting gnolls in the Mutamin's Garden area east of Temple. She is the only victim of Mutamin's basilisks that can be saved by a Stone to Flesh scroll. The honorable, heroic (and profitable) reaction to her rescue is to consider it "the right thing to do," with no payment expected. This will earn you 300 xp and +1 to your Reputation. If you are too slow to come to this conclusion, you will get no reward. If you insist on payment to the end, she will give you her house, which turns out to be the useless and inaccessible Submerged House, fallen into ruin and submerged in a swamp, in the Area South of Beregost. If you are greedy enough to so insist, it does indeed "suit your disposition just fine," as she says. You also get -1 to Reputation.