Talk:McAnally/@comment-71.175.7.210-20160205035040

He makes beer. It is ambrosial -- Harry refers to it as such MANY times, which could be what Butcher is referring to, obliquely.

I believe he is Ambrosius, one of the names given to Merlin. I am really grasping at straws here, but perhaps after creating Demonreach, Merlin "opted out" of everything, basically becoming a Time Lord that only observes and does not interfere. After seeing the horror imprisoned under the island, it's pretty reasonable to assume ANY being that sensitive would no longer want to be exposed to that sort of thing anymore.

From Cold Days:

''Mac snorted. Then he got me a bottle of one of his microbrewed ales. They are nectar and ambrosia. He opened it and passed me the bottle (since he knew I rarely drink beer out of a glass), and I tilted it toward him before drinking some. ''

Alternately, he may be Gambrinus, the so-called "King of Beer", who is reputed to have made a deal with the Devil. When the Devil's judge is sent to acquire the soul, Gambrinus gets the judge drunk on his beer and lives for another hundred years. When the Devil comes to claim the soul himself, he finds that Gambrinus' body has become a beer barrel.

Yes, I'm a fan of Tim Powers' book The Drawing of the Dark.