“Are you Mr. Froelich?” one of them asked.
“Yes,” answered Bobby. “Why? What do you want?”
“I should like to speak to you a moment.”
“What about?” Bobby eyed them suspiciously.
“I am from Scotland Yard, Mr. Froelich. We’d better go inside to talk.”
Bobby, quite bewildered, led them into his sitting-room, and shut the door.
“My name is Inspector Groombridge,” said the spokesman of the two. “I have been instructed to place you under arrest.”
“Me! Under arrest? What on earth have I done? There must be some mistake.”
Bobby was horrified.
“Those are my instructions, Mr. Froelich, and I am afraid I must ask you to come with me. My colleague, Sub-inspector Dane, is to remain here in possession, and I am afraid I must ask you to hand him your keys.”