The Nightmare Frontier: Bloodborne's Poisoned Valley of Amygdala

The Nightmare Frontier is an optional nightmare in Bloodborne, a misty valley of cliffs, graves and poison swamp that lies beyond the Lecture Building of Byrgenwerth. At its far end waits Amygdala, a many-armed creature the game counts among the Great Ones. No item or note describes the place, so nearly everything known about it comes from what is there. (Bloodborne)

How do you get to the Nightmare Frontier?#

It starts at a door. Once the hunter has reached the Forbidden Woods, a voice behind certain doors in Yharnam hands over the Tonsil Stone. Its description: "A latticed, deformed rock, or perhaps a meteorite." It "Appears useless, but possesses some odd gravitational force that prevents its riddance," and it carries a message from "A dubious soul": "Step lightly round to the right of the great cathedral, and seek an ancient, shrouded church... The gift of the god head will grant you strength..." (Bloodborne)

Follow the advice and a small Amygdala at that church seizes the hunter. They wake in the Lecture Building, the old Byrgenwerth classroom that now drifts in the nightmare. The Lecture Theatre Key calls it "the two-story Lecture Building", once "a place of reflection, where scholars learned of history and archaeology." A door on the first floor leads out into the Frontier. (Bloodborne)

There's a second way in later in the night. The Lecture Building's upper floor can be reached from Yahar'gul, and from there a shortcut down to the first floor opens the same door. (Bloodborne)

What waits in the Frontier#

The Frontier is a long, sunken valley. The low ground is swamp that poisons anyone who wades through it, and the paths along the cliffs are watched by Giant Lost Children who hurl boulders. Winter Lanterns, Silverbeasts and Wandering Nightmares roam the tunnels. Few places in the game feel so far from the city. (Bloodborne)

Partway through, the hunter meets the voice from the door. Patches the Spider waits on a cliff edge and, as the hunter goes for the loot near the edge, taunts them and pushes them over into the poisoned valley. The stone was bait. (Bloodborne)

At the end, past a lift, is Amygdala. It fights with its many arms, fires beams from its eyes and, near the end, tears off its own arms to swing them. Its trophy calls it a Great One, and the Amygdalan Arm weapon is described as "The arm of a small Amygdala Great One." Kill it and it drops the Ailing Loran Chalice. Patches has a few last words for it, and none of them is grief. (Bloodborne)

Amygdala beyond the Frontier#

Amygdalae aren't only found here. Smaller ones cling to buildings around the Cathedral Ward and Yahar'gul, often unseen until the hunter has enough Insight or the moon turns red. Another Amygdala carries the hunter into the Hunter's Nightmare in The Old Hunters, and more appear as bosses in the Chalice Dungeons. Outside those dungeons, the Frontier's is the only one fought as a boss. (Bloodborne)

What players read into it#

The game doesn't explain the Frontier, so everything below is interpretation. (Bloodborne)

• The most common reading ties the Frontier to Loran, the land "devoured by the sands" where the scourge of the beast struck before Yharnam. Amygdala drops Loran's chalice, and the Silverbeasts here look like the Loran Silverbeasts of the dungeons. No text makes the link. (Bloodborne)
• Patches is usually read as Amygdala's worshipper, luring hunters to it as offerings. The Tonsil Stone's message promises a "gift of the god head", and an Amygdala is what collects whoever follows it. He never says what he gets out of it. (Bloodborne)
• The name is also read literally, as the outer edge of a larger nightmare that holds the Lecture Building and the Nightmare of Mensis. The two areas share the building, but the game gives no map of how the nightmares fit together. (Bloodborne)

The Kin page covers the Winter Lanterns and other cosmic creatures, and the lore summary shows where the nightmares sit in the story. (Bloodborne)