"Didn't you see us?"
"No, I only hear you talking. Then I fire one shot to give you a scare."
"And you almost blew Bob's head off," added Hugh.
"I tried to shoot high," said Heinrich. "Then I hurry away to tell Mr. Wernberg that I had two of the plotters caught. When I was gone I guess one of the plotters came there and you had a fight with him."
"The fake detective," exclaimed Bob.
"His name iss Kraus," said Heinrich. "He has a little mustache, and in the afternoon he blew up the house, because he knew we were after him and he wished to destroy all evidence."
"That's when Mr. Wernberg got hurt," said Mr. Cook. "What was he doing in the house, Heinrich?" He was amazed at the way the mystery was clearing itself up.
"As I told you," said Heinrich. "He was looking around for evidence against the gang."
"Why didn't he notify the police if he was suspicious?"
"As I told you," repeated Heinrich patiently, "he wished to do all himself and when he turned those men over to the police no one could say he was forced to do it. They sent him lots of warning notes because they knew he was after them."