Moments ago I finished writing the second to last chapter of Please Don't Tell My Parents I'm A Supervillain. One left. It will be a big chapter and may be broken up into multiples later, but structurally it makes sense to write it as one.
I hope my sanity holds up. I get very obsessive and impatient this close to the end. That resulted in the last chapter of Quite Contrary being very sub-par and needing to be rewritten entirely. I do not intend for that to happen again.
Soon, book four will be complete, and I'll shop around copies to my writer friends to find out if it's any good.