The Little Mermaid Gravity Falls style! Mermando finds he is more depressed without Mabel than without his family. He notices Mabel on a cruise ship, but has no way to get on board without exposing himself to the world. He then makes him a deal; she can give Mermando legs and teleport him on board for the cost of two things: she gets his voice, and Mabel forgets who he is! Mabando.