Find Isagonus
I've scoured Isagonus on Atlantis. Can anyone tell me where to find him?
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Just before the Outer Atlantis Portal you'll also come across another quest NPC by the name of Acrocatus. Speak with him to update our City of Atlas quest too.
Acrocatus tells you about 3 Serpentoid bosses that you need to defeat before you can gain access to the final area of this expansion. Isagonus, Caanthus & Vvisssllisss are their names and 2 of them are found in Atlantis Lower District, the area we will be passing through next. Vvisssllisss, the final boss, is found in Atlantis High District.