Editing Idoneth Deepkin (section)

===Age of Chaos===
While the Sylvaneth kept the secret, the Idoneth dialed back their attacks and kept a low profile in Ghyran. On the Chaos side, the [[Keeper of Secrets]] Sslish the Depraved followed the spoor of strange magic and eventually found an Idoneth army, attacking them with a daemonic army until an Eidolon destroyed them. [[Archaon]] had long suspected there were more aelves than would seem, but wasn't able to confirm this until his Gaunt Summoners found the same magic and scried, finding and binding Sslish before Archaon tortured the daemon into spilling the beans.

But the Idoneth thought that they didn't need the surface world and limited themselves to the oceans, leaving only for raiding souls. During the Age of Chaos this started to change. They fought the forces of Chaos wherever they found them, either leaving Chaos' other opponents alone or killing them and taking their souls too. High King Volturnos realized that they'd have to ally with others to fight off Chaos though most other Idoneth didn't approve of this. First, he reached out to Alarielle for peace talks but, wary of trickery and aware of the Idoneth's past actions, Alarielle turned them down. They also encountered some Stormcast Eternals, and after a battle where the Idoneth learned they're unable to capture Stormcast souls due to Sigmar's blessing, they found new allies in the Sigmarines.