Beautiful To Me — E.L. Tenenbaum

Princess Sienna is the most beautiful, the most charming, the most beloved of King Trident's daughters in the enchanted underwater kingdom. Not much is denied her, and all of Merdom favors her. Then a few days after her fifteenth birthday, Sienna does the unthinkable. She makes a bargain with the sea witch to trade her tongue and tail for a pair of legs and a chance to live a human life. Stung by her betrayal, Merdom turns its back on her. Having grown up in Sienna's shadow at court, Ariel is used to being unnoticed. So when the sea witch specifically asks her to go after Sienna and convince her to return home, Ariel is under no illusions; she is expendable. Still, out of obligation to her king and kingdom, she goes, thinking to slip in and out unnoticed as always. The moment she sets foot on land, however, everything changes. Beautiful To Me is the third in a five part companion series that rewrites the classic tales of happily ever after.