No; not that way!" They had reached the hall, and Burton had turned toward the side door that opened on the alleyway.

"Whoever they were who settled their last account with Isaac may still be watching.

They've nothing against any one else, but they know some one was in here at the time, and, if the police are clever enough ever to get on their track, they might find it very convenient to be able to say WHO was in the room when Isaac was murdered--there's nothing to show, since Isaac so obligingly opened the window for them, that the shot was fired THROUGH the window and not from the inside of the room.

And even if they have already taken to their heels"-- Jimmie Dale was leading Burton up the stairs again as he talked--"it might prove exceedingly inconvenient for us if some passer-by should happen to recollect that he saw two men of our general appearance leaving the premises.

Now keep close--and follow me." They passed the door of Isaac's den, turned down a narrow corridor that led to the rear of the house--Jimmie Dale guiding unerringly, working from the mental map of the house that the Tocsin had drawn for him--descended another short flight of stairs that gave on the kitchen, crossed the kitchen, and Jimmie Dale opened a back door.