MYSTERY OF MYSTERIES—THE KING OF THE WORLD
THE SUBTERRANEAN KINGDOM
"STOP!" whispered my old Mongol guide, as we were one day crossing the plain near Tzagan Luk. "Stop!"
He slipped from his camel which lay down without his bidding. The Mongol raised his hands in prayer before his face and began to repeat the sacred phrase: "Om! Mani padme Hung!" The other Mongols immediately stopped their camels and began to pray.
"What has happened?" I thought, as I gazed round over the tender green grass, up to the cloudless sky and out toward the dreamy soft rays of the evening sun.
The Mongols prayed for some time, whispered among themselves and, after tightening up the packs on the camels, moved on.
"Did you see," asked the Mongol, "how our camels moved their ears in fear? How the herd of horses on
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