Lana’s sisters Harper and Sarah learn about haunted houses and decide that they want to go to one. However, with none in the region, the group and the visiting Acerola and her Mimmikyu decide to make one at the Pokémon School. However, when it’s set up, a group of Ghost-type Pokémon, attracted by Mimmikins, soon appear and drag the group into a mystery world. Meanwhile, a playful Wailord causes some crates (inside one of which Eevee is napping) to fall overboard from the cruise ship; finding itself literally at sea, a panicked Eevee falls overboard and is rescued by a Mantine. (Source: Wikipedia)
