I think it gave me a more thrilling consciousness of human terror in face of the supernatural than anything which I had yet heard in this connection.
Surely her motive for remaining in the haunted house had been extraordinarily strong.
"You are afraid," she declared.

"You will shrink, when the time comes, from going into that cellar at night." I shook my head; I had already regained both my will-power and the resolution to carry out this adventure to the end.
"I will go," said I.
"And get me my box ?" "Yes!" "And bring it to me here as early the next day as you can leave Mrs.
Packard ?" "Yes." "Oh, you don't know what this means to me." I had a suspicion, but held my peace and let her rhapsodize.
"No one in all my life has ever shown me so much kindness! Are you sure you won't be tempted to tell any one what you mean to do ?" "Quite sure." "And will go down into the cellar and get this box for me, all by yourself ?" "Yes, if you demand it." "I do; you will see why some day." "Very well, you can trust me.

Now tell me where I am to find the brick you designate." "It's in the cellar wall, about half-way down on the right-hand side.
You will see nothing but stone for a foot or two above the floor, but after that comes the brick wall.

On one of these bricks you will detect a cross scratched.

That's the one.