Politically Lancelot Vane might be incapable of treason, but where love was concerned--well, had he not acted traitorously towards her?
"That's true.

Vane was no traitor.

He was accused out of spite.

I went to see him in Newgate.

They had thrust him in the 'lion's den,' the most filthy and abominable of infernos, and he was loaded with fetters.