Small rocks occasionally drop from the edge of the hole. You can barely hear hissing and grunting in the opening above, but it is enough to warn you that there is something alive up there. Suddenly, a reptilian head thrusts through the opening. A foul odor washes through your tiny chamber. Roll a Constitution saving throw. If you get a total of 13 or more, go to page 153. If you fail the save, go to page 154.