Years ago I read the first 2 Dune books - Dune and Dune Messiah, then found the 4th and 5th for cheap and picked them up, thinking the 3rd would be easy to find later.
Oh how wrong I was. For whatever reason, the 3rd book in the Dune series (Children of Dune) is extremely hard to find, short of ordering it on Amazon - which I was determined not to do. It would be like cheating, see? A challenge had been issued, a gauntlet thrown down, and I rose to the challenge! So yeah, years later, today, I found Children of Dune at Half-Price Books. But now I don't remember much along the line of character names and plot lines in the first two books, so it's looking like it's reread time