When strolling in the moonlight on the beach, Ona stumbles across a mermaid princess who has been sacrificed to a sea dragon and attempts to rescue her.

—

"But what is it?" the princess wondered in amazement.

Ona watched her, silently amused to see someone so baffled by something as simple as an apple. "It's an apple," she said.

"Awwwwwpple," tried the princess. "And the big thing it grew from?"

"A tree."

"Treeeees. What are they?"

"Plants."

"Do they speak?"

"Sometimes."