Gah. I was actually looking at p.4 when I wrote that, and so you can imagine where that error came from!Well, Greyhawk.
No- always looking for some.So you don't have any of the insider testimonials you were looking for on that topic?
BUT ... that's only part of it. As I explain lower-
So the issue with a lot of this is that a lot of the materials were lost, and a lot of the people either forget, mis-remember, or, um, lie.I was just looking at similarities because someone asked. The D&D Thief didn't use innate/powerful shadow-magic like Shadowjack, for instance, in fact, like Cugel, it didn't have innate magic, at all. It did use magic scrolls via Decipher script, which is closer to Lieber's Grey Mouser than the other two. There were other similarities.
There were differences, too, The Grey Mouser was a swordsman comparable to Fafhrd, though using a rapier rather than a broadsword - and no early-D&D Thief was the equal of a similar-XP (let alone level) Fighter, that way.
The Thief is actually a great example of this. Gygax claimed sole credit for this (same with the Cleric), even though it can't be true. That's why, when you're looking into this, you have to balance a lot of competing factors, and come to a sort of "best guess" scenario- which is say, even if someone gives you the "magic bullet" quote, there's a good chance it could be wrong. Such is life.
The Thief can't be single sourced- I don't think Shadowjack or Cugel are the sole sources for the Thief. I think it was largely borrowed/stolen from the Aero Games class as relayed to Gygax, with some additional Gygaxian flourishes (percentiles!). That part is indisputable.
I think you can further trace material that is pure Gygax (or Gygax collaborators) by seeing what was added post-Great Plains.
But what, exactly, Shadowjack or Cugel added? Don't know. I only know that Gygax specifically referred to them. Is there some Lieber influence? Maybe. Don't know. I'd love to see a reference to it!