You swim toward the vibrating dolphin. It takes all your willpower not to snack on a plump rainbow squid along the way. At the mouth of an underwater cave, you discover a little shiny dolphin cowering in fear. 

“Ack ack ack?” you ask.

“Ack ack ack ack ack,” the scared dolphin replies, urgently.

After “acking” back and forth for a while, you learn her story. She was playing above the surface, bopping a ball around, when a giant human hand came from the clouds and snatched one of her friends.