And if these could become known to an enemy, the appearance of a stranger would lead to questions that would at once expose his ignorance of our simplest secrets.

He would learn nothing, and would never tell his story to the outer world." ...
Opening the door, or rather window, of his private chamber, Esmo directed our eyes to a portrait sunk in the wall, and usually concealed by a screen which fitted exactly the level and the patterns of the general surface.

It displayed, in a green vesture not unlike his own, but with a gold ribbon and emerald symbol like the cross of an European knighthood over the right shoulder, a spare soldierly form, with the most striking countenance I have ever seen; one which, once seen, none could forget.

The white long hair and beard, the former reaching the shoulders, the latter falling to the belt, were not only unlike the fashion of this generation, but gave tokens of age never discerned in Mars for the last three or four thousand years.

The form, though erect and even stately, was that of one who had felt the long since abolished infirmity of advancing years.