“That doesn’t keep us from getting him,” responded Cardona. “A clever man would leave no clew.”
“These deaths were planned ahead,” declared Biscayne seriously. “This one was framed two weeks ago.
“The others — so far as we can ascertain — were prearranged. The murderer has had time to be far away—”
“Not far enough,” said Cardona grimly. “We’re going to get that guy, wherever he is! He won’t get away from us now. Not unless he’s dead, himself!”
The chance remark kindled a new burst of thought in Biscayne’s mind.
“Dead!” he echoed. “Dead! Suppose the murderer is dead! Cardona, you have struck it!”
“The solution?”
“Yes!” Biscayne was speaking emphatically, now. “Think of these crimes as one continued chain. Carefully planned, neatly executed — but inconsistent in one important point.”
“The notes,” remarked Cardona.
“Right!” resumed Biscayne. “Those death announcements, mysterious though they have been, were inconsistent. They could betray the man who sent them — unless he feared no betrayal.”