Wow. I think a lot of what you have here really does represent a lot of Irish/Celtic mythos. The lovecraft stuff fits well...and now I've got that Clancey Brothers song about a ship on the "Illy Ally Oh" dancing about in my head, so thanks for getting Cthulhu into my Irish folk bands . The Time stuff obviously follows Discworld rules about sunlight (being slower here and there and not really working as it should). And the names I particularly like since they all sound properly Celtic...ish. I have an unfinished Ireland-ish setting, but it's got nowhere near as much detail as this. Bravo!

I don't suppose there's room for one of the Celethrelt to have a big cauldron and a life-granting-cudgel?