Book-worms Unite!
First, you must know that I'm an avid reader as well, and Science fiction (IMO) is the absolute best type of material with which to nourish the mind.
Many many moons ago, when I was in my teens, I happened across a nice little book by a mostly unknown auther, Paul O. Williams. The book was titled "The Breaking of Northwall" and I enjoyed reading it. It wasn't Hugo or Nebula material, but I enjoyed the story nonetheless. It was the first in a series (or so it stated on the back cover). So when I finished, I went back to the bookstore and inquired about the next in the series. The shopkeeper looked on her trusty Microfiche machine

and didn't find any continuation. Furthermore, she found no other novels by said author. I was disappointed, but figured maybe he just hadn't finished book #2. I waited a month or two and then inquired again. Sadly, no, she didn't see anything new. Again, I waited...and again I was told "nothing new". This went on for probably a year or so. After a while, I quit asking and wondered what happened to the author and/or the continuation of the story. (Nowadays, we have Google and Wikipedia! Back then...nada.) I was a bit disappointed, but oh well, that's life.
So the one book I had was stuffed into a box with many other books I read and kept. Through the years, the box was pushed further and further into the "mountain of clutter" (a.k.a. - basement or attic storage). A few years ago, I was rummaging through the clutter and found my old box of books. I decided to give quite a few to a second hand book store. I looked at "The Breaking of Northwall" with a final sigh and hoped some young mind would find it as enjoyable as I did.
Then, last November, while looking through another second hand book store, I saw, staring me in the face like a big huge neon sign...not one or two, but SIX (!) volumes of the series all sitting near the checkout counter. I looked them over counting again: books 2 through 7! I scooped them up, enthusiastically paid the cashier (a whopping 6 dollars) and practically flew home, eager to dive in!
I thought to myself as I drove home, "I should re-read the first novel before moving on to book 2" as it has been many years since I first read it.
Then it dawned on me. I donated it.

In rapid succession, I went through denial, heartache, anger and disappointment. How could I have been so foolish! By the time I arrived home, I was visibly upset. I went through the motions of checking the storage boxes, not at all surprised when I didn't find it there. I was totally bummed. Over the next few weeks I started scouring used bookstores, goodwill, even the local library with no luck.
Late January, I went back to the bookstore I originally donated the book to and guess what I found sitting on the shelf. There, sitting in all its glory was the original book. (I honestly don't know if it was my copy or not.)
I was elated! I paid the $1.25 and bounced out of the store. Well, I've re-read the first one and I'm now up to the third volume.
I just felt like sharing my little story with you. Oddly enough, I checked Amazon earlier today and sure enough, they have all seven books available. LOL!
(Live and learn, Kyra...live and learn!)
For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return. - Leonardo DaVinci