By ten o’clock we were over Lake Michigan.  The west shore was lightless, except for a dull ground-glare at Chicago, and a single traffic-directing light—­its leading beam pointing north—­at Waukegan on our starboard bow.  None of the Lake villages gave any sign of life; and inland, westward, so far as we could see, blackness lay unbroken on the level earth.  We swooped down and skimmed low across the dark, throwing calls county by county.  Now and again we picked up the faint glimmer of a house-light, or heard the rasp and rend of a cultivator being played across the fields, but Northern Illinois as a whole was one inky, apparently uninhabited, waste of high, forced woods.  Only our illuminated map, with its little pointer switching from county to county as we wheeled and twisted, gave us any idea of our position.  Our calls, urgent, pleading, coaxing or commanding, through the General Communicator brought no answer.’  Illinois strictly maintained her own privacy in the timber which she grew for that purpose.

‘Oh, this is absurd!’ said De Forest.  ’We’re like an owl trying to work a wheat-field.  Is this Bureau Creek?  Let’s land, Arnott, and get hold of some one.’

We brushed over a belt of forced woodland—­fifteen-year-old maple sixty feet high—­grounded on a private meadow-dock, none too big, where we moored to our own grapnels, and hurried out through the warm dark night towards a light in a verandah.  As we neared the garden gate I could have sworn we had stepped knee-deep in quicksand, for we could scarcely drag our feet against the prickling currents that clogged them.  After five paces we stopped, wiping our foreheads, as hopelessly stuck on dry smooth turf as so many cows in a bog.

‘Pest!’ cried Pirolo angrily.  ’We are ground-circuited.  And it is my own system of ground-circuits too!  I know the pull.’

‘Good evening,’ said a girl’s voice from the verandah.  ’Oh, I’m sorry!  We’ve locked up.  Wait a minute.’

We heard the click of a switch, and almost fell forward as the currents round our knees were withdrawn.

The girl laughed, and laid aside her knitting.  An old-fashioned Controller stood at her elbow, which she reversed from time to time, and we could hear the snort and clank of the obedient cultivator half a mile away, behind the guardian woods.

‘Come in and sit down,’ she said.  ’I’m only playing a plough.  Dad’s gone to Chicago to—­Ah!  Then it was your call I heard just now!’

She had caught sight of Arnott’s Board uniform, leaped to the switch, and turned it full on.

We were checked, gasping, waist-deep in current this time, three yards from the verandah.

‘We only want to know what’s the matter with Illinois,’ said De Forest placidly.

‘Then hadn’t you better go to Chicago and find out?’ she answered.  ‘There’s nothing wrong here.  We own ourselves.’

‘How can we go anywhere if you won’t loose us?’ De Forest went on, while Arnott scowled.  Admirals of Fleets are still quite human when their dignity is touched.