He entered the house at her suggestion and was waved to a seat.
"You're a brave fellow, Riggs," said she, looking at him. "I am glad you came out to us, for we are in the shadow of a great event. But I want to show you something. It will strengthen your loyalty to us."
She touched a button set in the wall, and a door opened slowly.
This disclosed a flight of steps, and the woman descended with the detective at her heels.
At the bottom of the flight she struck a match and lit a lamp.
"Look!" she said, pointing away. "Behold something worth fighting for. I feel that we can trust you, Riggs."
Old Broadbrim looked and uttered an exclamation of surprise.
[CHAPTER XIII.]
BLACK GEORGE'S WARNING.