It just kills me when I lose track of fics; I'm looking for two.

The first fic I'm looking for takes place during 'In My Time of Dying' (2.01), in which Castiel travels back in time to talk to John about the sacrifice he's about to make/just made. He warns John about how long he'll spend in Hell and not to break.

In the second fic, Castiel is Banished using that blood sigil and Dean ends up being Banished with him, and they end up in the land where the angels go when they're banished, which is a wasteland leading up to Paradise and they have three days to get to the city to return to the real world. The fic is gennish with a pre-slash leaning, but it's about Dean and Castiel traveling across this land.

Thank you in advance!

ETA: Both were found so quickly! They're in the comments. Thank you to godofstrife and oatmeal_queen!