from the introduction:
In the beginning was the first edition of the Warhammer Fantasy Roleplaying Game. It contained a fantastic tutorial adventure known as The Oldenhaller Contract.
This adventure has inspired many a Gamesmaster and player to enter the grim and perilous world of Warhammer.
Alas time, the world (ours and The Old World) and mechanics move on. I decided I would blow the cobwebs off this adventure and see if I could restore it in its glory to the mechanics of 4th Edition WFRP.
This is not just a simple stat conversion. I have lent in to the original’s aim of being an introductory adventure and repurposed it as an introduction to the 4th Edition, providing handy GM call outs and hints and tip.
...
There have been many subtle tweaks to the descriptions and text to help better convey the atmosphere and I couldn't resist pulling on dangling plot threads and developing them (Part one now has 19 Episodes!)