"But do you suppose some one else saw them together? Have you thought of that?"
"I don't catch the drift of your meaning," and Dick looked enquiringly at his sister.
"Suppose there was some one else near the road that night watching Mr. Randall and David as they walked along? And suppose, further, that when the old man was going back alone to the Haven some one had killed him?"
"Good heavens, Lois! you make my blood run cold. Why should you suggest such a thing?"
"But you don't believe that Mr. Randall killed David, do you?"
"No, no! I couldn't for a moment think that Spuds would do such a thing."
"Well, then, some one must have done it in a way similar to what I have said."
"Sure, I never thought of that. But who do you suppose did it?"
"That's for us to find out."
"Us?"