Yes, I know ... there's really no excuse for lengthy delays between chapter postings. No, the dog didn't eat my papers or lick the words off the screen. I got distracted by teaching classes at our local sail & power squadron. I'm taking celestial navigation Monday evenings; teaching seamanship on Tuesday and Thursday evenings, and teaching Piloting (coastal navigation) on Wednesday evenings. This will stretch into November. The instructor usually learns more than the students; refresher studies and class prep take a lot of time and energy ... so that's my excuse.
Chapter 21 is posted; I'm sitting down to knock out at least two more today, so we'll get back on track. Thanks for following the adventure.