The Blood of Dawnwalker: How to Unlock the Sacristy in Most Precious Thing

The sacristy at St. Tyna’s Convent is the one building standing between you and the Relic of St. Tyna, and it will not open with force. Walk up to it during Most Precious Thing and the prompt reads “Locked (Requires key),” with the quest log switching to “Search for keys to the sacristy.” The key you need is close by, hanging in a small wooden shed a few steps from the door.

Quick answer: Grab the Monastery Keys from the shed beside the sacristy — climb the roof next to the locked door, drop into the backyard, and take the keys off the shelf next to the “Letter for Anghel” — then return to the door and choose “Unlock with Monastery Keys.”

Where the sacristy and the Anghel Shed sit in the convent

The sacristy is the small standalone building tucked into a corner of the convent grounds, past the chapel and set against the far wall to the northwest. The shed that holds the keys is right behind it, on the dormitory side of the compound. Both are reachable without fighting anything, since the zombified sisters in the courtyard only turn hostile once you get close, so hug the walls and stay out of their path.

Quest tracker showing the sacristy objective as the player moves toward the red marker in the convent — The red objective marker points at the sacristy building across the convent grounds. Image: Rebel Wolves

How to get the Monastery Keys

Approach the sacristy door and confirm the lock. The interaction prompt shows “Locked (Requires key),” which is your cue that the door cannot be opened yet and the keys are the only way through.

Turn to the low roof directly beside the locked door and climb it. Coen can pull himself up without any special ability, and the ledge runs along the back of the building.

Coen crossing a convent rooftop with the sacristy relic objective tracked on screen — Crossing the roof next to the locked door drops you into the enclosed backyard. Image: Rebel Wolves

Cross the roof and drop down into the enclosed backyard on the other side. This little yard is what the locked door was blocking, and the wooden shed is straight ahead of you.

Step inside the shed and look at the shelf. A note titled “Letter for Anghel” sits there, signed by Dyna, and the keys hang right beside it.

Interact with the prompt “Pick up Monastery Keys” to add them to your inventory. Loot the container next to the shelf while you are here — it holds a Broken Spoon and Torn Clothes.

Loot prompt on screen as Coen searches barrels inside the shed during Most Precious Thing — The loot prompt on the container beside the shelf where the Monastery Keys are stored. Image: Rebel Wolves

Head back to the sacristy door and interact with it again. The prompt now reads “Unlock with Monastery Keys,” and the door opens for good.

What you pick up in the shed

Item	Why it matters
Monastery Keys (1)	Opens the sacristy and the other locked side doors around the convent
Letter for Anghel	A note from Dyna refusing forgiveness for her husband Olan’s death; readable flavour text
Broken Spoon (1)	Junk loot from the container
Torn Clothes (1)	Junk loot from the container

How to confirm the sacristy step is done

Picking up the keys triggers a “QUEST UPDATED” banner for Most Precious Thing, and the tracker swaps from “Search for keys to the sacristy” back to “Search for the relic in the sacristy.” Once the door swings open, the objective is complete. If the prompt still says the door requires a key, the keys are not in your inventory yet — go back into the shed and take them off the shelf rather than only looting the container.

Note: the same keys work on other locked doors on the side of the convent, including the one beneath the bell tower to the east, so there is no reason to drop them after the sacristy.

What’s inside the sacristy

A dead sister lies on the floor of the sacristy. Search her body to take the Relic of St. Tyna, the necklace Brencis’ officer asked for. It is an epic amulet rather than a pure quest item, so the stats are worth reading before you decide whether to hand it over.

Relic of St. Tyna
Maximum human health
Witchcraft ability damage
Witchcraft ability health cost
Activation charge restoration

Carrying the relic back to the soldiers holed up in the infirmary closes out Most Precious Thing. Hand it over and they leave the convent quietly, taking the necklace’s stat bonuses with them; tell them you are keeping it and the three guards attack, with the fight starting in the tight alley behind the infirmary. Either outcome ends the quest, so the only real decision is whether you want the amulet or the clean exit.