And so it was that my play was answered and a Messenger appeared before me. Both terrible and Wanderers was he to be hold: his eyes were twin hollows that burned with sapphire flame, and great wings rose from between his shoulder blades to stretch high above his head, the surface shimmering like mother-of-pearl. 'he stretched out his hand and lead me follow him into the Aethyr, and follow him I did, along paths that never were, to a place that should not be.
Far to the north he led me, to where the Gates of the End had stood since before the rise of men. There I looked into the Immortal Realms and saw four great thrones within the endless planes of oblivion. I asked the messenger, " 'whos thrones are these?" and the messenger said, " they are the thrones of the ancient powers; the spirits of fornication, wrath, despair and inconstancy. Both thrones and dominions are they - brother guards and Princes of mortal hearts."
...
I stepped back from him then, forI believed that surely he spoke untrue, and I told him as such. " If this is the only realm," I said, " where then is Solkan's Palace, or the healing pools of Shallya? Where are Taal's hunting grounds and Mannan's azure citadel? Where are the celestial temples of the gods of man? For before me I see only the thrones and dominions of chaos."
And then the messenger seemed to grow in size so that his head eclipsed the pale sun, and his shimmering wings seemed to fill the vaults of the sky. " there is only one gate," he said once more, " and only one realm lights beyond it. it is true that the planes of darkness stand open before you, but also, and at the same time, The endless tears of light stretch up above you."
...
just because these fools believe they saw Tzeentch does not mean it actually happened. Tzeentch is the great manipulator and the father of lies, and his daemonic servants take their lead from their master.