Meanwhile, Margie Marne was having an adventure of her own, to which we will now recur.
In another part of the city, and about the same hour that witnessed the strange explosion in the dungeon where Carter was confined, the girl sat in her little room.
She was quite alone, but all the time she was watched by a pair of eyes that did not lose sight of her.
These eyes glittered in the head of a man on the floor above, and he was enabled to watch the girl through a hole deftly cut in the floor.
All unconscious of the espionage, the girl looked over a few papers which she had taken from their hiding place in one corner of the room, where they would baffle the lynx eyes of a keen man, and now and then a smile came to her face.
All at once she heard footsteps approach her door, and for the first time in an hour she looked up.
A rap sounded, but Margie hesitated.
Should she open the door and admit her visitor?
Perhaps it was Carter, whom she wanted to see just then, but a sudden fear took possession of her.
At last, however, Margie arose, and hiding the papers in her bosom, crossed the room.