Another idea suddenly occurred to him and, after estimating the height and position of the window, he turned and ran his eye once more over his surroundings. About fifty yards from the distillery, and behind the hedge fronting the lane, stood the cottage which Hilliard and Merriman had noticed. It was in a bad state of repair, having evidently been unoccupied for a long time. In the gable directly opposite the managing director’s office was a broken window. Willis moved round behind the house, and once again producing his bent wire, in a few moments had the back door open. Slipping inside, he passed through the damp-smelling rooms and up the decaying staircase until he reached the broken window. From it, as he had hoped, he found he had a good view into the office.

He glanced at his watch. It was ten minutes past seven.

“I’ll do it tonight,” he murmured, and quietly leaving the house, he hurried to Ferriby Station and so to Hull.

Some five hours later he left the city again, this time by motor. He stopped at the end of the lane which ran past the distillery, dismissed the vehicle, and passed down the lane. He was carrying a light, folding ladder, a spade, a field telephone, a coil of insulated wire, and some small tools.

The night was very dark. The crescent moon would not rise for another couple of hours, and a thick pall of cloud cut off all light from the stars. A faint wind stirred the branches of the few trees in the neighborhood and sighed across the wide spaces of open country. The inspector walked slowly, being barely able to see against the sky the tops of the hedges which bounded the lane. Except for himself no living creature seemed to be abroad.

Arrived at his destination, Willis felt his way to the gap in the hedge which he had used before, passed through, and with infinite care raised his ladder to the window of Archer’s office. He could not see the window, but he checked the position of the ladder by the measurements from the hedge. Then he slowly ascended.

He found he had gauged his situation correctly, and he was soon on the sill of the window, trying with his knife to push back the hasp. This he presently accomplished, and then, after an effort so great that he thought he would be beaten, he succeeded in raising the sash. A minute later he was in the room.

His first care was to pull down the thick blinds of blue holland with which the windows were fitted. Then tip-toeing to the door, he noiselessly shot the bolt in the lock.

Having thus provided against surprise, he began his investigation. There in the top corner of the side window were the wires. They followed the miter of the window architrave—white-enameled to match—and then, passing down for a few inches at the outside of the moldings, ran along the picture rail round the room, concealed in the groove behind it. Following in the same way the miter of the architrave, they disappeared though a door in the back wall of the office.

Willis softly opened the door, which was not locked, and peered into a small store, evidently used for filing. The wires were carried down the back of the architrave molding and along the top of the wainscoting, until finally they disappeared into the side of one of a series of cupboards which lined the wall opposite the door. The cupboard was locked, but with the help of the bent wire it soon stood open and Willis, flashing in a beam from his electric torch, saw with satisfaction that he had attained at least one of his objects. A telephone receiver similar to that at the syndicate’s depot was within.