...I became insane, with long intervals of horrible sanity...

Barrels Out of Bond

“So they [elves] sang as first one barrel and then another rumbled to the dark opening and was pushed over into the cold water some feet below. Some were barrels really empty, some were tubs neatly packed with a dwarf each; but down they all went, one after another, with many a clash and a bump, thudding on top of ones below, smacking into the water, jostling against the walls of tunnel, knocking into one another, and bobbing away down the current.”