 Seeing the danger posed by the animals, Pickett suggests that everyone should leave the island, but Jason is adamant that nothing will ruin his birthday celebration.In the meantime, while chasing after a butterfly, Iris is frightened by snakes and baby alligators along her path, and in a panic, falls into a swamp, where leeches latch on to her.She manages to detach a few, but fatigued, she falls down near a rattlesnake, which promptly bites and kills her.