Board Thread:Character Discussion/@comment-24018644-20150413153456/@comment-25703308-20150422002811

Somebody contact the writers, it's a simple fix:

Assuming Zelena survives the 4B finale, anyone can ask her about the freezing and we can have a nice simple little flashback with Ingrid (not even much wardrobe, just Ingrid in casual clothes) making a deal with Zelena.

It could also work if Zelena just mentions it, but it'd be nice to have Elizabeth Mitchell back even for a minor appearance.