Arguably one of the eeriest places in Middle Earth is the Dead Marshes, which Gollum leads Frodo and Sam through on the way to Mordor. It is a quiet and demoralizing land, without any birds or living things, so they try to give Gollum some Lembas bread, which chokes him. As they peer into the murky water, they see ashen faces peering back at them, and Gollum explains that there was a deadly battle fought there long ago which resulted in the loss of many lives. So what was this battle, and who are the people that fought in it?