Three way crossover of Happy Death Day, Avengers, and Saw. Two years after stopping her attempted killer, Tree Gelbman is now an agent of SHIELD. Unfortunately for everyone, the killer known as Jigsaw has returned, and the only one who can stop him is Tree, given she can create time loops. Along the way, an ally of Tree discovers how she can create the loops in the first place.
Rated: M - English - Mystery/Adventure - Chapters: 9 - Words: 12,510 - Favs: 8 - Follows: 4 - Updated: 2/11/2019 - Published: 2/3/2019 - Jigsaw, Iron Man/Tony S., Nick F., Dr. Strange/Stephen S. - Complete