Scout Kanat says the rest of the scouting party is dead or afflicted, too far gone to be saved. He also says the Maulborn are protected from the Llodos plague by arcane wards.
Destroy the Maulborn Wards: 0/3
I need to find and destroy three arcane wards in the southern section of the cave.
Defend the Archers while they destroy the crates
Hlaalu archers will try to destroy the cargo bound for Mournhold from the cliff above. I need to defend the archers while they make their attack. I'll meet up with Naryu Virian to signal the attack.
— game journal