That crab—seemingly trivial—reverberates in Ish’s mind. His relief at saving a fellow living thing exposes a deeper need for connection and for small acts that affirm purpose. Returning to the town, he salvages useful gear: a solar charger, medical supplies, and a copy of Darwin. He posts markings on a church steeple to document his route and leaves a written note: “Ish — looking. If you find this, I will be at the river.” It’s an offer and a test.