After you have talked to him, jump down the cliff into water.
Get out of water on the left/western bank and climb the vine shown in the screenshot.
This will take you to the cave that you oughta enter.
After a moment’s stroll, you will notice an ancient door to your left.
On the top, you will notice apiratethrough the hole in the ground.
If you have theDeath from Aboveskill available jumping onto theenemywill do the trick.
Below, there are two otherpirates.
TheChained Executionskill will prove very useful here.
The area further on is being patrolled by adogand an armoredenemy.
I recommend that you start an open fight here.
At the end of the zip line, there will be, most probably, apiratewaiting for you.
To kill him, you oughta jump onto him.
Now, you will be up for another fight.
Find a cover and kill all of theenemies.
Get to the very bottom of the caves, by means of zip lines.
After you zip for the last time, you will notice a torrent of acid to your right.
Get down there on the wooden platforms shown in the screenshot.
Down below, there are furtherpirates.
Keep to the right of the cave as you descend.
you should probably pass when all of acid falls down onto the ground.
That is where you will encounter another group ofenemies.
Reach the end of the cave and verify that you do not step into acid on your way.
You will encounter furtherenemiesthere.
Jump down and go right over the wooden scaffolding.
When you reach the very bottom, watch out for the sulfur fumes shown in the screenshot.
Eventually, you will reach vines that you better use to climb higher.
This way, you will open a descent.

As you go down, keep killingmonitors.
This way, you will leave the tomb and complete this quest.
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