Not much to go on, certainly.

Didn't you say that you have sent him money ?" "Twice." "And how ?" "In notes to Camberwell post office." "Did you ever trouble to see who called for them ?" "No." The inspector looked surprised and a little shocked.

"Why not ?" "Because I always keep faith.

I had promised when he first wrote that I would not try to trace him." "You think there is someone behind him ?" "I know there is." "This professor that I've heard you mention ?" "Exactly!" Inspector MacDonald smiled, and his eyelid quivered as he glanced towards me.

"I won't conceal from you, Mr.Holmes, that we think in the C.I.D.that you have a wee bit of a bee in your bonnet over this professor.