He followed them from prison to prison, from crime to crime.

Finally, as he was about leaving for Europe, he learned in New York that Ballmeyer had, five years before, embarked for France with some valuable papers belonging to a merchant of New Orleans whom he had murdered.
And yet the whole of this mystery has not been revealed.

Mademoiselle Stangerson had a child, by her husband,--a son.

The infant was born in the old aunt's house.

No one knew of it, so well had the aunt managed to conceal the event.
What became of that son ?--That is another story which, so far, I am not permitted to relate.
About two months after these events, I came upon Rouletabille sitting on a bench in the Palais de Justice, looking very depressed.
"What's the matter, old man ?" I asked.