The Path to Greatness and Proof for One

Be amazed in this, the fourth "Travels Through Flame" paired stories set:  Travel five millennia ago to the first human landing on Australia. Will the prophet Mahur survive, or will his work and time travel have to be continued by Lesh? What will this bode for life in just-beyond modern Australia and Dr. Smythe's world view? What is proof, really, when you know a fact, but cannot convey it to the world?