Michael Brooks murmured, “This was done by a single person. This person is meticulous, cautious, and plans thoroughly. Taking away the wallet and gun was meant to make us think it was a robbery and murder, and even dared to leave by car—quite bold. The killer was in disguise, otherwise such obvious features wouldn’t have been left behind.”

　　After investigating, he reached the same conclusion: this was the work of a professional. Otherwise, it wouldn’t have been so clean and efficient, nor so well-prepared. All the clues they had were deliberately left by the other party.

　　Michael Brooks was certain that a routine investigation would yield no progress; even if clues were found, they would have been intentionally left by the other side, just to lead them astray.

　　On Brian Carter, they found a used blank notebook. This notebook was a bit odd—the used pages had all been torn out. Michael Brooks found it strange and took it back to hand over to the lab.

　　Here is a brief introduction to the organizational structure of 76. At the beginning, 76 had various committees and the First, Second, Third, and Fourth Departments. Later, all committees and departments were abolished and replaced with four divisions and four offices. Not long after, four more divisions were added. Currently, the main structure of 76 consists of eight divisions and four offices.

　　The eight divisions are the First to Fourth Divisions, as well as the Confidential Division, General Affairs Division, Intelligence Division, and Communications Division. The four offices are the Inspector’s Office, Commissioner’s Office, Interrogation Office, and Laboratory.

　　In addition, 76 also has affiliated units such as the Guard Battalion, Armory, Detention Center, Guesthouse, Police Training Class, Police Dog Training Class, and Female Agent Training Class.

　　The laboratory is mainly responsible for developing various poisons, explosives, and other advanced special agent technologies. Many new technologies and new bombs were developed by them.

　　A clue was quickly found in the blank notebook from Brian Carter—a sentence written in invisible ink!

　　Michael Brooks did not dare to delay and immediately reported to the director of 76, Samuel Scott.

　　Samuel Scott was from Changde, Hunan. In his early years, he had joined the Communist Party. In 1934, he served as the director of the Third Division of the Military Commission’s Investigation and Statistics Bureau. In August 1938, the First Division of the Investigation and Statistics Bureau was reorganized into the Central Bureau of Investigation and Statistics, the Second Division into the Military Bureau of Investigation and Statistics, and the Third Division was abolished. He was left with only a major general’s advisory post, “recuperating” in Hong Kong. In anger, he went to Shanghai to establish 76.

　　Michael Brooks said, “Director, this was written with milk as invisible ink. After washing with iodine, the writing appears.”

　　Samuel Scott looked at the contents of the notebook, his expression calm as water, and read aloud the words: “On the 23rd, have scallion pancakes with Mr. Mu.”

　　Michael Brooks said nothing. Although he suspected that Brian Carter might have another identity, since Samuel Scott didn’t ask, he couldn’t say. After all, he had come from the Military Bureau. Before joining 76, Michael Brooks was the assistant personnel secretary for the Shanghai district of the Military Bureau.

　　When he saw the words in the notebook, his heart pounded. Who was Mr. Mu? And what did scallion pancakes refer to?

　　Samuel Scott put down the notebook with the invisible writing and asked in a deep voice, “Is this Brian Carter’s handwriting?”

　　Michael Brooks shook his head. “We can’t be sure for now, because it was written with the left hand.”

　　Brian Carter’s handwriting could be found, but there was no sample of his left-handed writing. After all, no one had ever seen Brian Carter write with his left hand. Whoever wrote this, whether it was Brian Carter or not, was very clever.

　　Samuel Scott flipped through the notebook and found that several pages at the front had been torn out. Clearly, every time something was written, it would be torn out not long after. Perhaps this note would also be torn out after the 23rd.

　　Samuel Scott said slowly, “Continue to investigate the killer, and also pay attention to Brian Carter’s other connections. Maybe by the 23rd, the truth will come to light.”

　　In fact, when he saw the words “Mr. Mu,” a name flashed through his mind. He just didn’t say it in front of Michael Brooks.

　　Michael Brooks pondered, “This killer is very cautious. Brian Carter’s gun and wallet were both taken by him. Maybe it was deliberately left to mislead us.”

　　Samuel Scott asked, “You used to be in the Military Bureau. Among their operatives, is there anyone so meticulous?”

　　Although he had never worked in the Military Bureau, he was very familiar with their style: action-oriented, not intelligence-oriented. For Brian Carter to record this information in such a secretive way, it must be very important.

　　Michael Brooks could hear the hint of reproach in Samuel Scott’s words and shuddered inwardly. “No, there isn’t.”

　　After joining 76, he chose to side with Samuel Scott. But he soon discovered that Samuel Scott was only the nominal leader; James Foster was the real power in 76.

　　But since he had chosen Samuel Scott, he couldn’t switch sides again. Having already defected from the Military Bureau, he was already looked down upon; if he switched to James Foster, he would be despised even more.

　　Samuel Scott instructed, “No matter what, you must get to the bottom of this sentence.”

　　Michael Brooks suddenly said, “Brian Carter isn’t really one of us. Maybe this is his personal business.”

　　Samuel Scott said, “Don’t you have an informant in the Military Bureau? Have him check it out and you’ll know.”

　　Michael Brooks nodded. “Alright.”

　　Even without this notebook, he would have met with his informant. This assassination of Brian Carter was the first operation after the new district chief of the Shanghai district of the Military Bureau took office, so news was bound to leak.

　　Before leaving, Michael Brooks took a finely packaged paper bag to the Second Section of Intelligence.

　　Michael Brooks handed the paper bag to Helen Green, smiling as he said, “Helen, this is French Chanel perfume that just arrived at the Wing On Department Store.”