Thanatos shows are as rare as Unicorns. There was one recent short set in Portland with the previous show (a full band show) taking place in August, 2014. You can contact and reserve a table at Uncommon Ground in advance of the show. The capacity of the venue is 50 so it wouldn't be a bad idea to book early. The price is $8.
Thanatos will play some old songs, some never before heard songs. Larson ? Who knows what he will pull out of his hat....something old new, borrowed and blue most likely.
There may even be some Christmas songs played. Tell your friends, tell your enemies.