was no staircase. Nothing but a single shaft for a lift went up the centre between the solid walls, and the approach to it was guarded by heavy, powerful men like plain-clothes policemen.
"Pretty elaborate protection, I know," said Wain. "Maybe it makes you smile a little, Father Brown, to find Merton has to live in a fortress like this without even a tree in the garden for anyone to hide behind. But you don't know what sort of proposition we're up against in this country. And perhaps you don't know just what the name of Brander Merton means. He's a quiet-looking man enough, and anybody might pass him in the street; not that they get much chance nowadays, for he can only go out now and then in a closed car. But if anything happened to Brander Merton there'd be earthquakes from Alaska to the Cannibal Islands. I fancy there was never a king or emperor who had such power over the nations as he has. After all, I suppose if you'd been asked to visit the Czar or the King of England you'd have had the curiosity to go. You mayn't care much for czars or millionaires; but it just means that power like that is always interesting. And I hope it's not against your principles to visit a modern sort of emperor like Merton."
"Not at all," said Father Brown, quietly. "It is my duty to visit prisoners and all miserable men in captivity."
There was a silence, and the young man frowned
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