"I desire to take you as my mate" explains Clia. "But I am of the sea and you are of the land. Thus I must offer you the choice. Take the starfish and we may be together in the ocean."
Clia sees the uncertainty on your face.
"As much as I love the ocean, I know that many humans do not wish to leave the land for the sea. So in good coincience I must also offer you the stone: take it and remain on the land if you do not wish to be with me in the ocean."
You consider Clia's offer. She is beautiful as is the ocean, but you have strong doubts about abandoning life on land.
You think the decision is between becoming a merman or remaining human and bidding goobye to Clia, but you are actually mistaken.
At last you deciede...