 His opinion was based on letters from the attending doctors presented in the magazine "Indian Skeptic", published by Basava Premanand.Brown also related, in the same book, his experiences with manifestations of "vibuthi" from Sai Baba's pictures in houses in London, which he felt were not fraudulent or the result of trickery.Brown wrote with regards to Sai Baba's claims of omniscience, that "sceptics have produced documentation clearly showing discrepancies between Baba's reading of historical events and biblical prophecies, and the established accounts."