There are two ways to get this group of books.
First is at the Voice of the Martyrs Kids of Courage website: Kids of Courage Downloads
The second is from, surprise, my second resource, Christian Home School Hub. CHSH is a great website. There are support groups, forums, information, and tons of downloads. And, if you sign up for their email, they send you links to free downloads in each one.
So check out both of the sources for great home school supplement items. You won't be disappointed.
*I do not receive any compensation, free products, discounts, or any type of recognition if you click on the links or buy items from the companies in this post. I am simply providing the links in order to simplify your search for products I recommend. I suggest items I believe in and only do so in order to help other families.