After having broken a few crystals, from the Ice Wyrm's Belly, you come in a corridor at (28.42/23.93).
You must jump over a pool of icy water to go on.
Then this path leads you to the Artifact's room, described in-game as "????" in (29.88/25.34).
Like most of the cave, the temperature can fall below -27°C (-16°F) during the night.
From the local creatures
- You can find a red Loot Crate when you arrive to the water, on your right.