I don't know what's going on with the Goodkind books, but books 2, 3 and 5 are free at B&N right now. 1 and 4 were free earlier,
but aren't now. Books 2 and 5 are currently
not free at Amazon. None are free at Kobo.
B&N:
Wizard's First Rule (#1) - Amazon
Stone of Tears (#2) - B&N
Blood of the Fold (#3) - B&N Amazon
Temple of the Winds (#4) - Amazon
Soul of the Fire (#5) - B&N
So, between Amazon and B&N, you can get books 1-5 right now. Keep checking and more may become free or some may disappear.