What happens in chapter 16 and 17 in Flushed

Noah and Abbey combined all their money and came up with fifty-seven dollars and sixteen cents which they would spend all on dye. They decided to buy fuchsia dye, perfect for Operation Royal Flush. They would buy food dye because it wouldn't be harmful to the animals. When they left the store, Bull was standing outside. They were frightened at first, but he said he just came by to say he was sorry and that he and Jasper, Jr., were wrong all the times they had hassled Noah. Apparently, the old stranger had scared him into apologizing.