The Prophet of Supposition was a male San'Shyuum.
Nothing else is known about him, but, based on his attitude towards the Flood, it has been speculated that he, like Tano 'Inanraree, was a member of the Covenant fringe sect, the Governors of Contrition. He was likely to have been the highest ranking Prophet in the Fleet of Particular Justice.
- His name, as with almost all the other Prophets, is exactly the opposite of what it seems. He knows the truth of the Flood, and does not suppose anything, like the others.