That was a lot of fun to read. I wasn't expecting the next installment of OOTR to be all Corwin and the Fog, but it worked out pretty neatly anyway.
I also wouldn't have expected Corwin to pick this as his first move after TBS; I guess he saw getting Iona a replacement ship-body as a concrete thing he knew how to tackle, and therefore something to do next, even if it wasn't necessarily the strategically optimal thing to do next. (It may have turned out to be the strategically optimal thing, I mean, now he's got an entire mini-fleet of Fog ships on his side, but he couldn't have known that was going to happen even if he was fully on his game.)
It's interesting that no one discovered the Midway base in four hundred-odd years. Earthforce and/or Black Omega clearly have some line on leftover bits of the fleet (it seems like Kongō didn't know about it, which is curious in itself since she was presumably constructed there, but still) and there's surely been no shortage of treasure hunters and so on, in between the end of the Fog War and the present day.
On a more meta note, having gotten this finished, do you have any comments on why it was difficult to write? That you feel comfortable sharing with the peanut gallery, I mean. I don't want to pry, but I like hearing about people's writing process.