What conversation do Calum and the dwarf have while walking in "The Truth is a Cave in the Black Mountains"?

Calum MacInnes is asked to act as a guide to the cave on the Misty Isle and agrees to do so for a price. While he leads the dwarf, he warns him of the consequences of taking gold from the cave on the Misty Isle, but the dwarf is confident. Lacking trust, Calum intends to wait until the dwarf brings the gold out of the cave, and then rob and kill him, but the dwarf knows of his plan.