"Should we bring the stone?" Jon asked.
Karyn shaded her eyes with one hand and said "Usually I'd say no, but maybe we'll need it. You know, if there's a cave-in or something."
A cave-in? Jon thought. Let's hope not. Jon made a necklace, so that the stone could hang from his neck. It was the easiest way to keep track of it and not lose it.
"Okay, let's go," Jon said. They both turned themselves into otters, dove into the water, and swam into the cave.