Plot summary
The brothers and frog sail down a lake, where they hear the Beast's singing, and Greg remains hopeful while Wirt has given up. They reach land and sleep under a tree for the night. Greg dreams of being welcomed by the residents of an angelic cloud city. The festivities are cut short when the North Wind is released and starts terrorizing the city. Greg defeats the North Wind by trapping it in a bottle. The Queen of the Clouds appears to Greg, allowing him one wish as a reward. He wishes to find the way home, but the Queen tells Greg that Wirt is too far gone and is covered in Edelwood branches, signaling that the Beast has claimed him.
Greg instead wishes to take Wirt's place, and leaves with the Beast. Wirt awakens to find snow falling and Greg gone. He tries to chase after them, but falls into a frozen lake, only to be rescued by Beatrice.
Credits
Adapted from Wikipedia contributors, Over the Garden Wall. Exact series, overall episode number and English title matched. Reference markers and illustrations removed; paragraph formatting adjusted.