Jilo is the 4th book in the Witching Savannah Series by J.D Horn. I first came across this series about a year ago while browsing titles in the Kindle Owners’ Lending Library, and was sucked in completely within the first few chapters of the first book. I was furious with myself when I realized months had gone by since the latest release and I’d somehow forgotten about it!
Jilo takes place prior the first book, The Line, and it could certainly be read as a prequel to the rest of the series. When finished, I may go back and at least reread the first book to see if I make any connections I missed the first time around.