That is where the trouble lies, in proving it.

What he has learned thus far can be put down as only suspicions or hints, though they look bad for the Briton.
If Lady Ruth has observed enough to open her eyes with regard to the veteran soldier, John will call it quits.
A thought occurs to him, even as he rides toward Algiers, that causes a grim smile to break out upon his face.

It is a thought worthy of a Richelieu--an idea brilliant with possibilities.
"Here are Sir Lionel and Pauline--two despairing people who long for the unattainable.

Why should they not be mated?
It is perhaps possible, and would be a master stroke of genius on my part.

Jove! I'll see what I can do! Great pity to have all the plotting on one side of the house." From that hour John Craig devotes his whole mind to the accomplishment of this purpose, for he sees the benefit of diplomacy.
This is the great idea that is struggling in his mind as he rides along..