“We knew not what night or what hour of the night we would be roused from slumber by a gentle rap at the door....Outside in the cold or rain, there would be a two-horse wagon loaded with fugitives, perhaps the greater part of them women and children. I would invite them, in a low tone, to come in, and they would follow me into the darkened house without a word, for we knew not who might be watching and listening.” —Levi Coffin What do you infer that Coffin is talking about in this passage?