The Shadow did not try to beat the torpedo to the shot.
The Shadows have done everything but try to break in.
In a way, The Shadow had tried the plan as a test.
The Shadow tried to move the lever to shut it off.
The Shadow had tried the other house first, only to find the final way blocked off by a solid wall.
The Shadow tried to hear, to understand, but there was no way.
The Shadow tried to reconstruct the method that must have been used.
The Shadow didn't try to reason what they might do.
Shadow tried to get comfortable in the back of the bus.
The Shadow tried the front door of the house.