“Just put two and two together. Miss Noelson told me that there were times when one or more of the gang would disappear from the house and she was sure that they had not gone out by the gate. Looked a possible explanation of many things, especially the way that stolen goods were got out of the country. So I made up my mind to look for a tunnel⁠—particularly one that led from Larry’s private room.”

Inch by inch with the help of torches they went over the tunnel. It was clear that it had been enlarged and shored up since the old days of the smugglers. Once admitting the possibility of getting material, it was simple to understand that Larry would be in no difficulty in obtaining labour. He himself had a reputation as a craftsman, and there were several among those who were under his sway who were skilled in many directions. The steel sliding doors were examined by Winter with an expert eye. They were miracles of ingenuity, although they had failed in their evident purpose as a safeguard in cases of emergency.