I do not know if I am doing something wrong but I am unable to start this Stros M'Kai quest. Does it still exist ?
The infamous arcane explosion in the Imperial City that happened in the Spring of 2e579 — a night of storms, and trembling terrain — as related by the Chorrol Crier, mentioned by Chancellor Abnur Tharn in his "Eulogy for Emperor Varen" and explained by Lyris of Skyrim in the first volume of her "Chronicles of the Five Companions", and others, I am sure. The “Soulburst” happened at the same time as a big piece of Aetherius fell to Nirn. Coincidence? It was the first major piece of Aetherius to fall in five hundred years.
Then I met the Prophet on 4 Rain's Hand 2e582.