For some reason, I had the idea to combine the ex-girlfriend and the bill collector characters earlier, which serves two purposes: to give Jonah a reason to return to Mayfair and also to fill him in on some of the happenings while he's been gone. Things are back on track-ish.
I'm still planning on doing the linked short story thing and I should be able to recycle most of the material I've already written. It also solves the "Why are you investigating some missing kids when your mother hasn't been seen in three months?" problem I was wrestling with earlier.