met by Gumball and his steed Lord Monochromicorn. The group then flies through the air while Gumball serenades Fionna with the song "Oh, Fionna" and eventually asks her to be his girlfriend. When Fionna and Cake get to the ball, Prince Gumball takes Fionna to his room (decorated with candles and rose petals) and locks the door. She becomes flustered and backs away when he begins to take his shirt off. A drop of water lands on her shoulder, she looks up to see the real Prince Gumball trapped inside a giant icicle on the ceiling. The fake prince is revealed to be Ice Queen. Fionna is soon incapacitated; Cake senses trouble and rushes to her rescue. Enraged by the deception, Fionna takes out the crystal sword to fight. The sword turns out to be another one of Ice Queen's tricks and turns into a ball of ice around Fionna's hands. Cake hears noises from downstairs and senses Fionna is in trouble. Undaunted, Fionna uses the ice to beat Ice Queen over the head. Ice Queen pushes her off with a burst of snow which allows Fionna to get close to enough to break Prince Gumball free and knock out the Ice Queen with a broken icicle. Cake bursts in and sees Gumball standing next to Fionna in her torn dress; she jumps to the wrong conclusion and lunges at him but Fionna stops Cake and tells her it was the Ice Queen all along. Just then Ice Queen recovers and blasts Cake away from Fionna only to have Fionna knock her magic tiara off which negates her powers. The real Gumball asks Fionna on a date and is turned down; Fionna notes that she does not need a boyfriend at the moment—unless it were the Ice King. The episode quickly reveals itself to be a fanfiction story created by the Ice King, who is reading it to an imprisoned Finn and Jake. The Ice King asks how they enjoyed his story; Finn hesitates at first but hurriedly placates him when Ice King threatens them with his ice powers. Cast "Fionna and Cake", taking place in a gender-swapped universe, likewise features gender-swapped versions of the inhabitants of Ooo. A list of the major characters that feature in "Fionna and Cake" follows. Fionna (voiced by Madeleine Martin) – Fionna is the gender-swapped version of Finn. Fionna is a brave and adventurous