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The Blood of Lathander is hidden in a locked altar in the Secret Chamber beneath Rosymorn Monastery. For a safe pickup, find the Dawnmaster’s Crest and place it in the altar’s item slot before taking the mace; without the crest, the monastery’s defenses trigger a four-turn escape-or-destroy-the-machines sequence.
Where to find the Blood of Lathander
This is an Act One quest in Baldur’s Gate 3, set at Rosymorn Monastery. The relic itself is in the Secret Chamber in Crèche Y’llek, in the area beneath the monastery. It is a legendary +3 mace on a locked altar. The quest can begin as you explore the monastery and investigate reports of a powerful relic.
Quest and item details are reported by community-maintained references: Find the Blood of Lathander and Blood of Lathander.
How to get the Dawnmaster’s Crest
The Dawnmaster’s Crest disables the altar’s defenses. The main route is to solve the Dawnmaster’s weapons puzzle by placing the required weapons on their matching altars. The longsword is already in place; find and place a battleaxe, warhammer, and mace on the corresponding altars. Ordinary weapons of those types work, according to the item reference.
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- Explore Rosymorn Monastery and locate the Dawnmaster altars and the weapons puzzle.
- Leave the longsword where it is, then place a battleaxe, warhammer, and mace on their respective altars.
- Collect the Dawnmaster’s Crest revealed by solving the puzzle.
There is an alternate way into the crest’s chamber: a passive DC 10 Perception check reveals it, and a DC 30 Sleight of Hand check can unlock it. These checks are guide-reported mechanics; the available references are community-maintained rather than official patch documentation. See the Dawnmaster’s Crest item reference for the described methods.
How to take the mace safely
- Reach the Secret Chamber at Crèche Y’llek, beneath the monastery.
- At the locked altar, place the Dawnmaster’s Crest in the item slot.
- Take the Blood of Lathander once the defenses are disabled.
The quest reference also says you can insert the crest after taking the mace to deactivate the trap. That is a fallback, not the safest plan: taking the relic first triggers the timed danger described below.
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What happens if you take it without the crest
Taking the mace without the crest activates the monastery’s defenses and puts the monastery and Crèche Y’llek at risk. The walkthrough describes a four-turn window to escape or destroy four Lathander Solar Machines. The character who takes the mace is trapped behind a forcefield; the reference lists teleportation, an energy portal, or destroying the energy source as possible responses. If the machines are not destroyed, the blast destroys the creche.
Those exact encounter details come from a community-maintained walkthrough, not official patch notes. If you are relying on a particular tactic, check how it behaves in your current game version. The quest walkthrough is at Find the Blood of Lathander.
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Choose your approach
| Approach | Preparation | Risk and outcome |
|---|---|---|
| Use the Dawnmaster’s Crest | Complete the weapons puzzle or pass the described checks to access the crest chamber; put the crest in the altar slot before taking the mace. | The crest disables the defenses for safe retrieval. |
| Take the mace without the crest | No crest needed, but be ready to respond to the trap immediately. | Triggers the four-turn escape-or-destroy-the-machines sequence; failing to destroy the Solar Machines destroys the creche. |
What you are picking up
- Blood of Lathander: a legendary +3 mace found on the locked altar in the Secret Chamber at Crèche Y’llek.
- Dawnmaster’s Crest: the item used to disable the relic’s defenses.
Both are in-game items. No directly useful physical edition, printed guide, or licensed quest collectible is established by the available references.
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