So, aside from how much enjoyment people are getting from this story, the other common thread from most correspondents is that they wish I would publish new chapters more often.
My plan all along had been to keep to a new chapter every three weeks, this giving me plenty of thinking time as well as editing time. It also fit into my RL commitments which often take me away from writing and meaning I may forget to include details that may not matter, but sure make things fun.
However, not only am I finding that I miss spending time with Luke and Stef running around the inside of my head if I'm only working on a three week schedule, but now that the outlines of Book 2 are forming in my mind, I'm anxious to get into that to see where it takes the siblings.
Consequently, whilst it's not cast in stone or anything like that, I shall do what I can to get Book 1 out of the door in good order, meaning that new chapters should come out every couple of weeks, and if I have a sudden spurt of productivity, then maybe even more frequently than that. No promises, but we'll see.
CH