Over twenty years ago, I found the audio book of Into the Land of the Unicorns by Bruce Coville. It has a full cast of actors reading the book, so it was very easy to draw me in and fall in love. I would listen to it over and over, sharing it with my siblings, wondering if there would ever be another book. I never found the next book, which came out in 1999, until after my family moved to Arkansas in December 2002. After that, my siblings and I waited with great anticipation for the remaining books to be released.
And now, just a few years after the final book, in going back and reading the first. So familiar, still enjoyable. But I think I still prefer the audio book.