“Sorry.” The first young woman came briskly back. “Mr. Kuyper’s not in. Better write and ask for an appointment.”

“That won’t do. Who is in?” said Bell heavily.

“Don’t you bully me!” she cried.

“You don’t want to get into trouble, do you?” Bell frowned down at her. “You go in there and say Superintendent Bell is waiting to see Mr. Witt.”

“We haven’t got any Mr. Witt.”

“You do as you’re told.”

She went. She was gone a long time. A murmur of voices was audible. She came out again, looking flustered. “Well, what about it?” said Bell.

“I don’t know anything about it,” she said. A door slammed, a bell rang. She made a nervous exclamation and turned to answer it. Bell went first and Reggie on his heels.

In the inner room an oldish man stood smoothing his hair. He was flushed and at the sight of Bell he cried out: “But you intrude, sir.”

“Ah, here’s our old friend, Mr. Witt,” Bell smiled. “I should——”