Go down on your knees and acknowledge yourself an impostor before them all.

Then I will believe you--not before." "Don't, don't turn me against you!" cried Mercy, entreatingly.
"What do I care whether you are against me or not ?" "Don't--for your own sake, don't go on provoking me much longer!" "For my own sake?
You insolent creature! Do you mean to threaten me ?" With a last desperate effort, her heart beating faster and faster, the blood burning hotter and hotter in her cheeks, Mercy still controlled herself.
"Have some compassion on me!" she pleaded.

"Badly as I have behaved to you, I am still a woman like yourself.

I can't face the shame of acknowledging what I have done before the whole house.

Lady Janet treats me like a daughter; Mr.Holmcroft has engaged himself to marry me.
I can't tell Lady Janet and Mr.Holmcroft to their faces that I have cheated them out of their love.