"Welcome to the Haunted Hotel!" is the eighth episode of the Blue Jacket series. It was first aired in Italy on September 13, 2015 as the ninth episode, and will air in Japan on November 19, 2015.
- Screenplay: Satoshihiro Suzuki
- Storyboard: Kojima Masayuki
- Production: Masaki Utsunomiya
- Animation director: Kakinouchi Narumi, Mika Sawada
- Chief animation director: Koichi Suenaga
This episode pays homage to The Castle of Cagliostro.