It must be a Judas, a Rodin, an Iago--or Iaga.

But this is not the moment to waste in hypotheses.
"Are you sure of your valet?
You must send him a despatch, and in that despatch the copy of another addressed to Madame Gorka, which your man will send this very evening.

You will announce your arrival for tomorrow, making allusion to a letter written, so to speak, from Poland, and which was lost.

This evening from here you will take the train for Florence, from which place you will set out again this very night.

You will be in Rome again to-morrow morning.