The mermaid princesses can't wait to arrive at the new summer palace - all except for Arista, that is. This is to be a summer of dinners, dances, and lots of aristocratic boys! But boys or no boys, summer without her favorite sea horses to ride is not Arista's idea of fun until she discovers the brand-new stables at the summer palace - and the stablehand, Dylan. Suddenly summer takes an exciting turn for the better! Spending time with Dylan is great, but Arista worries how King Triton will react to her new boyfriend. Will she have to keep Dylan a secret from her father forever?
