Chapter 23
THEY hurried their prisoners to the nearest police station, leaving an officer in charge of the apparatus, and on the way Jimmy condescended to offer a little information.
"We've had that house under observation for two days, Digger. And when you opened the window yesterday morning you were recognised, at a range of two thousand yards, by a man with a telescope. Incidentally, he could have shot you, but we need not go into the grisly possibilities."
"You've got nothing on me," said the Digger. "I didn't tap the wire. Cully is a friend of mine and I happened to call on him— how did you know where the 'tap' was, anyway?"
"There's a queer little scientific instrument, the working of which I will not attempt to explain to you," said Jimmy, "but it detects a cut-in within a hundr
