Notwithstanding my friendly relations with Lupin and the many flattering proofs of his confidence which he has given me, there is one thing which I have never been quite able to fathom, and that is the organization of his gang.
The existence of the gang is an undoubted fact. Certain adventures can be explained only by countless acts of devotion, invincible efforts of energy and powerful cases of complicity, representing so many forces which all obey one mighty will. But how is this will exerted? Through what intermediaries, through what subordinates? That is what I do not know. Lupin keeps his secret; and the secrets which Lupin chooses to keep are, so to speak, impenetrable.
.....
The information supplied to Lupin by a private inquiry-office consisted of the following details:
“That’s a trade docket,” said Lupin to himself. “What I want is a domestic docket, a police docket, which will tell me about the gentleman’s private life and enable me to work more easily in this darkness and to know if I’m not getting myself into a tangle by bothering about the Daubrecq bird. And time’s getting short, hang it!”
