two shots in 'The Yellow Room' while the doors and windows were closed. We were with him in the lodge of the concierges, and yet we heard nothing, not a sound. The concierges have lied, of that there can be no doubt. They must have been already waiting, not far from the pavilion, waiting for something! Certainly they are not to be accused of being the authors of the crime, but their complicity is not improbable. That was why Monsieur de Marquet had them arrested at once."
"If they had been accomplices," said Rouletabille, "they would not have been there at all. When people throw themselves into the arms of justice with the proofs of complicity on them, you can be sure they are not accomplices. I don't believe there are any accomplices in this affair."
"Then, why were they abroad at midnight? Why don't they say?"
"They have certainly some reason for their silence. What that reason is, has to be found out; for, even if they are not accomplices, it may be of importance. Everything that took place on such a night is important."
We had crossed an old bridge thrown over the Douve and were entering the part of the park called the Oak Grove, The oaks here were centuries old. Autumn had already shrivelled their tawny leaves, and their high branches, black and contorted, looked like horrid heads of hair, mingled with quaint reptiles such as the ancient sculptors have made on the head of Medusa. This place, which Mademoiselle found cheerful and in which she lived in the summer season, appeared to us as
52
