In 1988 I stumbled upon role-playing fantasy book called Flight from the Dark, written by Joe Dever.
In it you take on the role of Lone Wolf, and your mission is to make it safely to the capital and warn the King.
Subsequent books take you on further, exciting adventures.
It was a novelty for me, all you need to play was a Lone Wolf book, pencil and some paper, and some time.
20 years later it was all but forgotten, but a chance remark on a forum somewhere rekindled the fond memories.
Recently I stumbled upon the Android version and was able to play the first 7 books on my Android device.
Wanting to dig a bit more around, I visited the Project Aon website - only to find the sad news of Joe Dever's passing.
It looks like he touched a lot of lives all over the world.