d unfortunately to be performed entirely in the
dark; and when our friend thought he had reached the door he was
considerably taken aback to find he was pouring powder on the dead face
of the hapless sentinel. Quietly striking a match, Grenville with the
utmost caution inspected his work. He found the train perfect, and was
about to leave the place, when a low horrified exclamation caused him to
turn, and find himself confronted by several Mormons.

These men were not slow to see through his intentions, and with an awful
yell rushed out of the place, and tried to close the door upon him.
Grenville was, however, too quick for them, braining one man, who fell
across the door and blocked it open.

The street beyond, he saw, was already alive with his foes, who were
rushing away from him in every direction, and dashing outside he fired
his revolver into the train and flew along the street towards the river.
For one instant the success of the plot hung upon a thread, and that
thread was the dead sentinel His death in point of fact almost saved the
Mormons from the fearful calamity which was now rushing madly upon them.

The miserable man's blood had trickled along the floor and damped the
powder, which fizzed and sputtered in the gory stream, and for one brief
instant seemed to be extinguished; then a single spark caught the dry
material beyond the tiny crimson rivulet, the serpentine flame spurted
across the rooms in one lightning flash of fire, and in the next moment
East Utah was shaken to its foundations by the explosion of fifty
barrels of gunpowder, which rent the earth and seemed to dwarf into
utter insignificance the thunder of the heavens, which still pealed and
crashed overhead.

For the succeeding moments nothing could be heard but the crash of
falling houses, accompanied rather than succeeded by the awful cry of
"Fire! Fire!" And almost immediately the whole city, or rather what
was left of it, could be plainly seen in the fearful conflagration which
broke out.

Fortunate was it for the hapless Mormons that that night of terror was a
night of storm, for had the tropic rain not stood their friend, every
soul in the place would have been left houseless and homeless; as it
was, however, the sheets of water which were teeming down, soon
extinguished the fires on every side, and the city once more settled
down into ominous and tangible darkness.

The author of all this ruin was meantime speeding in the direc