Leigh D/ Extreme Curves When (if Ever) Will The 3rd Volume Of Patrick Leigh-Fermor's Account Of Walking To Istanbul Come Out?

When (if ever) will the 3rd volume of Patrick Leigh-Fermor's account of walking to Istanbul come out? - leigh d/ extreme curves

It's a little, and I wonder if they often get to see the third part of the trilogy that began with a time of gifts and through the woods and water.