Third Shift: Pact doesn’t really feel like an ending. Although I guess given that Shift is a prequel of sorts to Wool, it makes sense.
The stories this time around are split between Donny (who’s taken Thurman’s place … somehow?) and Solo. Donny’s storyline does finally answer a few more questions: what is the real purpose of so many Silos and why are the powers that be okay with entirely losing them from time to time. It also serves as closure for Donny’s feeling of betrayal and loss of his wife–in rather a dramatic manner. The lack of fallout is a bit of a problem though.