It's a Letter to Gamel, it seems somebody wrote it before they drowned themselves.
"...it's hard to put into words what happened. The Necromancer sent us to parley with the Dragons, he told us of a secret route, one where it was unnecessary to brave fire to get there. And so we went, we dug under the barrels and lo loose ground was found and we entered the cave tombed in fire, what happened then was unspeakable..."
The text seems to have faint, it's authors hand gone limp... the rest of the tale I believe is drowned.