For the purposes of this post, I don't have a lot to say about the scenario itself, since it's old and probably quite well-known to most readers of this blog. Instead, what most interests me and that I think is most worthy of attention is the way Mr Hammack ran it at the table during the con. Bear in mind that Hammack was employed by TSR Hobbies between 1978 and 1982, where he worked as a writer, designer, and editor, primarily on the AD&D. I mention this to provide some context to what follows.
The module is designed for five pre-generated characters, all human – a fighter, a cleric, a magic-user, a thief, and a monk. I played the cleric, Zinethar the Wise, who was 9th level and, oddly, had slightly more hit points than the fighter. The module assumes that all the characters with the exception of the monk are condemned criminals who are offered the opportunity to escape imprisonment by undertaking a dangerous mission for the Duke of Urnst (in the World of Greyhawk), namely, the recovery of the Soul Gem from the titular Ghost Tower. I knew none of the other four players prior to play, so we had to learn to work together to succeed.
Mr Hammack is an older gentleman. I have no idea his actual age, but I suspect he's probably in his late 60s or early 70s at least. Despite this, his mind is very sharp, especially when it comes to the AD&D rules. More than once during the four hours we were at his table, a player asked a question about how, say, a spell functioned. Before someone could find the appropriate page in the Players Handbook, Hammack recalled the relevant information – and correctly. After a while, we learned to trust his memory over our ability to flip pages quickly. I bring all this up, because it supports my long-held contention that hobbies like roleplaying are good for the health of your brain.
Given how well he remembered the rules of AD&D, another question that came up was how strict Mr Hammack would be in applying them. He chuckled and said that he was generally quite flexible about doing so, with a couple of exceptions. Going back to spells, Hammack explained that he is often loose with spell durations but he was more rigid about areas of effect. Likewise, he noted that he was loose with encumbrance, unless he felt a player was trying to take advantage of a situation. He then told a terrific story about how he and other AD&D players of his acquaintance would use 3×5 index cards for character sheets, with stats being written on the front and equipment on the back. Anything you could fit on the back of an index card – in legible writing – would probably not bring encumbrance penalties into effect.
Mr Hammack's overall approach to rules was governed by common sense. He clearly knew the rules and was prepared to apply them when he felt it necessary or appropriate, but he never felt bound by them. Indeed, he could be talked out of applying them by a good argument from a player, as he was on at least one occasion. At the same time, Hammack was also quite clear that his decision was final. Once he'd made a decision and considered any input from the players, there was no further arguing of the point. That he was fair and judicious probably explains why no one argued with his final decisions – that we were all middle-aged men, not children probably helped, too. I found the whole experience quite refreshing, to be honest.
I should note that, despite his extensive knowledge of AD&D rules, Mr Hammack was not above introducing house rules into play. For example, there were many occasions when he asked us to roll under a character's ability score to determine if our characters succeeded at some action or other. Likewise, he made use of a simple critical hit/fumble mechanic that's definitely not something Gary Gygax would ever have approved of. The mechanic worked fine in play and even contributed to a number of fun moments, which was exactly what we all hoped for.
In sum, I had a great time at Allen Hammack's table. He was a charming, knowledgeable, and imaginative Dungeon Master and he made me appreciate how good a module The Ghost Tower of Inverness actually is. I consider myself very lucky to have played with him at Gamehole Con this year.