Let me tell you in the outset that the task I want you to undertake is a difficult and perhaps a dangerous one.

It will require patience, pluck, intelligence and _tact_.

Tandy Walker tells me that you have these qualities, and he ought to know, perhaps, but I shall find out for myself before we have done talking.

I shall tell you what the circumstances are and what I wish to have done.

Then you must decide whether or not you wish to undertake it; and if you do, you must take what time you wish for consideration, and then tell me what your plans are for its accomplishment.