"Second."
The eyes of the law studied the Saint's nervous respectability with an intent stare; and then the finger of the law beckoned.
Simon followed the law outside; and the finger of the law pointed upwards. In the first-floor window, a silhouette could be seen on a blind.
"In that flat below you, sir," said the law impressively, "there's a woman ooze wanted for murder."
Simon peered upwards.
"Why don't you arrest her?" he asked.
"Inspector's gone for a warrant," said the constable. "I'm keeping watch till he gets back. Now, what was it you heard in that flat, sir?"
"A sort of moaning noise," said the Saint sepulchrally.
"It's been going on for some time. Sounds as if someone was dying. I got anxious after a bit, and went down and rang the bell, but I couldn't get any answer."
"Listen," said the policeman.