The Book of DieselThe Light Before the Gospel“The open-hand seal emerged blackened but intact. Anahita wrapped it in linen and told Atar, 'Now it belongs not to Persia's greatness but to everyone who remembers what greatness failed to protect.'”
The Book of Diesel · Gospel Threshold Edition v4.5
Historically anchoredThe setting or public event is documented; dialogue, motives, and recurring characters are invented.
Alexander occupied and burned Persepolis; motives and circumstances are debated, and later Zoroastrian tradition remembered him as a destroyer of religion.
The rescue of the Keeper archive and the exact library fire are fictional; claims of Avesta destruction belong to later tradition and are labeled as such.