Hannah instructs the group to go down into the chasm, as it may be their only hope out of the cave. Professor Anderson is the first to climb down, and Sean follows but takes much longer, as he is frightened. During the descent, Professor Anderson notices some metamorphic rocks and tells Sean about them. He loses his balance and is put into what he initially thought was a perilous situation.
After filling in for the Doorman, Hundley finds a caterpillar which he calls Hundley Jr. He then builds a little habitat for the caterpillar and watches as it grows and goes through the process of metamorphisis.