At some point, however, Karnulon turned against the powers of Chaos.
His last act was a great betrayal of the Chaos Gods, by destroying one of their favoured worlds.
More than likely, however, Karnulon remains at large in the Maelstrom, because his death would be too lenient for the likes of the Chaos Gods.
Перевод верен. Он восстал против богов Хаоса. Хотя продолжил проповедовать Хаос... так что и возвращаться он не собирался...