CHAPTER XVI.
The Cavern In the evening Mr.Trelawny took again the whole party into the study.
When we were all attention he began to unfold his plans: "I have come to the conclusion that for the proper carrying out of what we will call our Great Experiment we must have absolute and complete isolation.

Isolation not merely for a day or two, but for as long as we may require.

Here such a thing would be impossible; the needs and habits of a great city with its ingrained possibilities of interruption, would, or might, quite upset us.

Telegrams, registered letters, or express messengers would alone be sufficient; but the great army of those who want to get something would make disaster certain.
In addition, the occurrences of the last week have drawn police attention to this house.

Even if special instructions to keep an eye on it have not been issued from Scotland Yard or the District Station, you may be sure that the individual policeman on his rounds will keep it well under observation.