Part 2: Chapters 29 and 30 Summary

As the boys work, a storm blows up far away, and when the lightening strikes against the dark sky, Stanley catches a glimpse of a rock on top of the mountain that looks like a fist with a big thumb sticking out. Stanley then remembers his grandfather saying that "he took refuge on God's thumb" after being robbed by Kate Barlow and left in the desert.

Zigzag celebrates a birthday and Zero again proves his mathematical ability by figuring out the number of days Stanley has been at the camp, 46. Stanley is stronger and the holes aren't as hard to dig as he once felt they were, especially since Zero is digging an hour a day for him. Zigzag comes over and accuses Stanley of using Zero as a slave and taunts Stanley, asking him if Caveman will "let...