22.50 To Vallorbe

Story #23 in the collection Spy Catchers.
Papa Pontivy comes into this matter to try and fix (cover up) a mistake by one of his agents relating to the killing of a German spy while trying to avoid capture. The agent had just stolen some classified plans but the plans where not on him when he died, only some ashes of recently burned papers. But it made no sense for the man to have destroyed the plans after going to the trouble of stealing them so what happened to them? And what had been burned?