Adrien Swiftblade tells you, "Anyways, I've found a way to get the wards to drop for a time. There is a Ward Guardian in a cave located in a heavily infested area nearby, around 43.6N, 55.5E. When that thing dies, the wards falter for a time."
Adrien Swiftblade tells you, "Be warned, however, the Ward Guardian has grown dramatically in strength since it first appeared. It is now as strong or stronger than those twisted bugs that wander the inner areas of the infestation, and should not be taken lightly."
Adrien Swiftblade tells you, "Once the Ward Guardian is dead, so you should be able to enter the Deeper Catacombs of the Paradox-touched Olthoi. Once in there, look for anything that may be of use to use in our research and bring it back to me."
Adrien Swiftblade tells you, "If, for some reason, the Portal is closed again when you get there, you should find the Ward Guardian in his cave and kill him again."
Adrien Swiftblade tells you, "I would hurry though, every time the Ward Guardian dies, it's either reborn, recreated, or whatever roughly six hours after its death, and the Wards return with it."