You're welcome. I like a good deal, so I am happy to share the news. If anyone else finds a good deal please post it and share.
The 4th "Fall" book (The Poisoned Chalice by James Swallow) is now also $4.79 (free shipping w/ Prime or $25 order) on Amazon, available for pre-order.
PS the 3rd Fall book is NOT on sale yet on Amazon, lol.