On the far side of the stone walkway you will need to climb another ramp to reach the heavy door at the end of this room. Behind that door is another stone hallway, and when you look to the left at the juncture, you can see two things of note: a large sealed door, and the ghost of the bard taking a branching hall to the right. Before following him, look behind you for an enchanting table, a piece of potentially useful gear, and a potion in the small nook that at first appeared to be the hallway.
Don’t bother with the door as you can’t open it right now- instead follow the spirit down some stairs into another set of the small, round tombs much like those you found earlier. Be very cautious on your way in here- while the initial chamber contains only an urn with some minor treasure in it, the very next one- found by looking to the left- holds a deadly Draugr Deathlord. What’s worse, anyone not sneaking into the area will also waken the two ordinary draugr who bracket the doorway in that chamber, waiting to maul anyone who is distracted by the Fus Ro Dah-ing undead. Sneaks will have a slightly easier time here as they can lure the Deathlord away, but are liable to have plenty of trouble just dealing with the thing anyways. Powerful heavy-armor-wearing melee combatants will likely barely notice the ordinary draugr, who are weak enough to dispatch quickly or, if you’re particularly invested in your Health and armor talents, simply ignore. Having a Follower along can be vital for this little battle.
Once the Deathlord is down, check the chamber to the left of where it rested, carefully avoiding the pressure plate that triggers the Soul Gem trap in the room and swiping the gem to disable the trap. You can also find an already re-deceased draugr here, clutching a potion as it lies in a dead end full of rocks.
Taking the remaining doorway from the Deathlord’s chamber will bring you to another short hallway of downward stairs, which leads you to a raised porticullis on yet another large room with a grate on the floor. This room has three other gated doorways, as well as yet another massive floor grate. Entering the room fully causes the porticullis behind you to drop into place, and the five draugr here to waken- two through the doorway to your immediate left, two through the doorway on the far wall, and one beyond the doorway between these, at the far end of the left wall. Initially only one will come at you from each direction, and they will be followed by the remaining two draugr if enough noise is made. These undead are a mixture of melee fighters and one spellcaster, and several of them are Scourges, so fighting them face to face can get a bit confusing- although it will likely be less threatening than the Deathlord you faced a minute ago.