As he did so, something caught his eye.
Father Tubelcek lay there, one eye still open as Vimes had left it, winking at eternity.
Cheery looked closer. He'd thought he'd imagined it. But...
Even now he wasn't sure. The mind could play tricks.
He opened the little door of the iconograph and spoke to the imp inside.
'Can you paint a picture of his eye, Sydney?' he said.
The imp squinted out through the lens. 'Just the eye?' it squeaked.
'Yes. As big as you can.'
'You're sick, mister.'
'And shut up,' said Cheery.
He propped the box on the table and sat back. From inside the box there came the swish-swish of brush strokes. At last there was the sound of a handle being turned, and a slightly damp picture rustled out of a slot.
Cheery peered at it. Then he knocked on the box. The hatch opened.
'Yes?'
'Bigger. So big it fills the whole paper. In fact' -Cheery squinted at the picture in his hands - 'just paint the pupil. The bit in the middle.'
'So it fills the whole paper? You're weird.'
Cheery propped the box nearer. There was a clicking of gears as the imp wound the lenses out, and then a few more seconds of busy brush work.
Another damp picture unwound. It showed a big black disc.
Well... mainly black.
Cheery looked closer. There was a hint, just a hint...
He rapped on the box again.
'Yes, Mr Dwarf Weird Person?' said the imp.
'The bit in the middle. Big as you can, thank you.'
The lenses wound out yet further.
Cheery waited anxiously. In the next room, he could hear Detritus patiently moving around.
The paper wound out for the third time, and the hatch opened. 'That's it,' said the imp. 'I've run out of black.'
And the paper was black... except for the tiny little area that wasn't.
The door to the stairs burst open and Constable Visit came in, borne along by the pressure of a small crowd. Cheery guiltily thrust the paper into his pocket.
'This is intolerable!' said a small man with a long black beard. 'We demand you let us in! Who're you, young man?'
'I'm Ch - I'm Corporal Littlebottom,' said Cheery. 'Look, I've got a badge...'
'Well, Corporal,' said the man, 'I am Wengel Raddley and I am a man of some standing in this community and I demand that you let us have poor Father Tubelcek this minute!'