I DO find Path of the Dragon Mage on sale for $0.99 on Amazon, though it is hiding:

If you search for it by title or author, it only pulls up the audiobook — but if you search by title then click on book 2 (NOT on sale) you can click on the “book 2 of 2” link then click on the first book. (Why am I picturing this in a restroom with “BEWARE OF THE LEOPARD” sign on the door?)

Here’s the direct link on Amazon for Path of the Dragon Mage