"But if Ker Karraje's secrets are known, do you suppose the powers are not also aware of the existence of the Count d'Artigas' submarine boat ?" Engineer Serko looked at me suspiciously.
"Mr.Hart," he said, "you appear to me to carry your deductions rather far." "I, Mr.Serko ?" "Yes, and I think you talk about all this like a man who knows more than he ought to." This remark brought me up abruptly.

It was evident that my arguments might give rise to the suspicion that I was not altogether irresponsible for the recent incident.

Engineer Serko scrutinized me sharply as though he would read my innermost thoughts.
"Mr.Serko," I observed, "by profession, as well as by inclination, I am accustomed to reason upon everything.

This is why I communicated to you the result of my reasoning, which you can take into consideration or not, as you like." Thereupon we separate.

But I fancy my lack of reserve may have excited suspicions which may not be easy to allay.
From this interview, however, I gleaned a precious bit of information, namely, that the dangerous zone of Roch's fulgurator is between five and six miles off.