Talk to Burt Sienna and get your story straight.  You’re not very happy that you have to rely on him for your alibi – he looks like the type that might crack under pressure.  However, you hadn’t had time to think of an alternative.  Reinforce the fact that he MUST NOT tell anyone that you weren’t with him.  If either Green or Maroon finds out who you are, your whole spying effort will fall apart.

There’s always the possibility of coming clean to the Inspector about the whole situation, but you can’t do that without permission from headquarters, and you can’t get that without your telegraph, which is sealed in your room.

Things are also going to be tricky because you are outwardly involved with Sienna, but you can’t let Green fall off the hook.  Be sure to find some opportunity to sneak off with him and keep his interest in you going.