Titles for the next few eps - speculate on the meanings!

Ep 3 is Oathbreaker Ep4 is Book of the Stranger Ep5 is The Door

What do they mean? Speculation!

Oathbreaker - Umbers breaking oaths, either giving Rickon to Ramsay or breaking their oaths to the Boltons and doing something good with Rickon? Tower of Joy stuff has broken oaths too I suppose, Ned being part of the rebellion and all that.

Book of the Stranger - not sure about this one, beyond the death focus.

The Door - maybe we see more of the Tower of Joy, the door to Lyanna's room?

The titles are always cryptic but you can occasionally tease good stuff out of them (I remember people working out "Kissed by Fire" would have the Ygritte "kiss" and Beric fight back in the day just from the neat title).