[Richard answers as one used to doing so.] Sinbrilee is the name of the city we have docked with, I suppose is the term. At the edge of the barrier now surrounding Keeliai, there is a bridge of steps that takes you there. It's on the back of another turtle, but the city itself is long dead and full of ghosts. They're harmless so far, and at most offer directions or ask for help in minor requests. [Subevent item quests. This is totally normal.]

[Moving on.] We have no reason to believe that those who enter Death are dead themselves. At the least, they will bleed as they do in life, and when they return through the barrier, the injuries do not vanish. It is another plane of existence, parallel to or overlaying this one: Dreaming seems shaped entirely by the consciousness of those there, but in Death, you are within a city that looks like Sinbrilee—save that shifts between the city at its height and a graveyard and that your own fears are made manifest there. We know that Death can also be accessed in Keeliai itself, as, most likely, can Dreaming. I've seen neither for myself while in Keeliai, but others spoke with the turtle while in dreams, and several others crossed over to Death while in Keeliai. The overbearing pressure of misery and fear they described is what is experienced by those who enter Death via the gates in Sinbrilee.

[How's that for an info dump?]