Located in the Reekwater territory, the Lazarus Instrumentality is a five-player Expedition (dungeon) in New World with a recommended player level of 60.
However, before you get stuck into the dungeon and all the mysteries it holds, you'll need to find a particular item that grants you access -- the Lazarus Tuning Orb.
Be mindful that unlike other MMOs, the Lazarus Tuning Orb is not a permanent key item. Your party only needs one to access the Expedition, and whomever begins the event will see their Orb consumed.
Complete quests for Aulus Fulvius
Found in the Reekwater Settlement, Aulus Fulvius will offer a lengthy questline starting with Secrets of the Swamp once you're level 56.
Once six quests are done, he will offer The Original Guardian (Expedition), and grant you a one-off Lazarus Tuning Orb.
Take it, and use it to enter the Expedition and collect an item called the Guardian's Eye.
Do quests for Leyson Reese
Reese can be found in the Shattered Mountains, at the Mountainhome outpost.
Providing you've reached level 58, he'll offer a quest called Pushing Back. Complete this, then the follow-up Guardians' Secrets, and he'll unlock Baetylus Headpiece (Expedition).
This one grants a one-off Lazarus Tuning Orb, asking you to defeat the Cilla in the Expedition.
Get Additional Orbs Through Crafting
Stonemasons can also craft the Lazarus Tuning Orb. They'll need to have a Tier 5 Stonecutting Table, and be at least level 150 in the profession.
You'll need the following materials:
- Corrupted Lodestone x20
- Asmodeum Chisel x1
- Runestone x10
- Lazarus Core x1
Be mindful that you can only craft one Lazarus Tuning Orb every 168 hours (one per week).