Finally got to this...
Title: But You Can Never Leave
Fandom: Super Mario/Luigi's Mansion
Main Characters: Luigi, King Boo, Hellen Gravely
Supporting Characters: Mario, Peach, Toad, Polterpup
Characters Featured in this Chapter: Mario, Luigi, Peach, Toad, Polterpup, Hellen
Status: In progress; 1 chapter of unknown complete
Rating: PG, eventual PG13
Summary: [Luigi's Mansion 3] A vacation turns out to be a trap. Family and friends are captured. And Luigi finds himself up against foes both old and new in his quest to rescue those who have been taken from him.
In this chapter: Luigi, Mario, Peach, and her Toad entourage arrive at the Last Resort for a vacation, determined to relax in spite of how bizarre things seem.
Link to Fanfiction.net (chapter 1):
https://www.fanfiction.net/s/13545169/1/