I have finished writing the second book. Of course, when I finished, it was just shy of being a novel by a couple thousand words (the official cutoff is 40,000 words.)
So I sent it to some alpha readers who'd helped me with the technical stuff. Unsurprisingly, Old NFO had completely different points and notes on the ambush Peter helped me with, and Peter had rather a lot of notes about the buying arms going sour in a souk that LawDog had helped with... So it goes!
By the time I added all the changes from what the alpha readers came wanted me to fix and clarify, it's made the cutoff for a novel... by 56 words.
It's now at beta readers, and I'm hunting about for cover art. With Peter doing 3 releases in 3 months, this is not the highest priority to get out the door, but I'm hopeful that I'll get the ebook out in the next month and follow later with the print version.