Cathedral of Eternal Night Guide

30-second TL;DR

Adventure Guide says

The upper chambers of the Tomb of Sargeras were once a place of worship to Elune.
Since the Legion's invasion, fel minions have desecrated this holy place, twisting it into their own image.
The Adventure Guide lists 4 encounters: Mephistroth, Domatrax, Agronox, Thrashbite the Scornful.

Encounters

Mephistroth9 abilities · 11 dropsMephistroth uses shadow magic to attack the party until he reaches 100% energy.

Domatrax8 abilities · 12 dropsUpon reaching 90% and 50% health, the Fel Lord opens up additonal portals to allow greater numbers of the Legion's soldiers to pour into the tomb.

Agronox5 abilities · 11 dropsAgronox corrupts the garden he once tended and turns it against players.

Thrashbite the Scornful8 abilities · 12 dropsThrashbite the Scornful favors imprecise, sweeping attacks with little regard for his surroundings.

Mounts, toys, achievements, transmog

Only rows the journal loot table or an achievement title can prove for this encounter.

Achievements

Cathedral of Eternal Night · Cathedral of Eternal Night · Heroic: Cathedral of Eternal Night · Heroic: Cathedral of Eternal Night · Mythic: Cathedral of Eternal Night · Mythic: Cathedral of Eternal Night

Entrance and instance

Cathedral of Eternal Night is a dungeon in the Adventure Guide. See the Cathedral of Eternal Night database page for the raw journal, map, and loot grid. This guide does not invent coordinates or a walking path.

Player strategy

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal.

Questions

How many bosses are in Cathedral of Eternal Night?

The Adventure Guide lists 4 encounters.

What loot does Cathedral of Eternal Night drop?

The journal lists 46 drops across its encounters. Open a boss guide or the database page for the per-encounter tables.

Is this the Cathedral of Eternal Night database page?

No. This is the encounter guide. The encyclopedia page with the raw journal tree and the full loot grid is linked as Database on this page.

Where does this guide's text come from?

Quoted Adventure Guide sections come from TheWoWDB's retail datamine (client build 12.1.0.69587, ingested 2026-09-01). We do not invent positioning, assignments, or cooldown timings.

Source and build

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal. Quoted sections come from TheWoWDB Adventure Guide datamine (client build 12.1.0.69587, ingested 2026-09-01). Ability names link to first-party spell pages. When a newer retail build is ingested, this page updates with it.