"Is your boat locked to the shore?"

"Yes, it's locked to a tree with two iron chains."

"How many locks are there?"

"A lock—a big lock."

"Who's in charge of the keys?"

"The key is hung on the wall of the guard's room, and when the goods are delivered, they go to the guard's room to get them, and when they are used, they are put back in their place."

"Is there a janitor?"

"Yes It's not so much a janitor as a shipwatchman."

"Boatwatchers?" Ouyang Ping felt that this information was very important, "Have you sent someone to watch the ship?" ”

"Yes, the man who watches the boat is called Gao Defeng, who has never been married in his life, because he has a disability - one leg is not good, and he is blind in one eye, so he takes care of him and watches the boat."

"What does the ship think? Isn't it locked? ”

"You can't lock it up! That thing can prevent the gentleman, can't prevent the villain, the people on this river will not steal, the Qinhuai River is open to the Yangtze River, the boat to the Yangtze River, can no longer be found, our factory was stolen a boat before, so, later sent Gao Defeng to watch the boat. Director Zhen didn't answer the point.

"What do you think of the ship?"

"It's mainly at night, and I get up and watch it once an hour."

Watching it once an hour means that the murderer can only have an hour's gap if he wants to use the pickle factory's ship to transport and sink the corpses. How far can the ship go in an hour? If you want to get the body as far as the north bank of the river, the straight line is the closest, and for the dock of the pickle factory, the place that the straight line points to is Ma Qiliang's vegetable field.

The murderer must have known that Gao Defeng got up once an hour to see the boat, and could complete the work of transporting and sinking the corpses in an hour, and the first scene should be near the pickle factory, and the closest thing to the pickle factory in this area is Ma Po Nunnery. Standing on the second or third floor, the tallest building in the Ma Po Nunnery, you should be able to see inside and outside the back door of the pickle factory. In the middle of the night, when the wind is so high that you get up to look at the ship, you must carry a lamp - or a flashlight!

Ouyang Ping looked at Guo Lao and Liu Dayu, and then said, "Director Zhen, where is the guard room?" ”

"Next to the back door."

"Director Zhen, can you take us to have a look? We also want to see the boat. ”

Ouyang Ping wanted to get acquainted with the environment, in addition to the pickle factory, Ouyang Ping and Guo Lao also wanted to go to the Ma Po Nunnery to have a look, standing on the second floor of the tallest building of the Ma Po Nunnery, or the third floor, whether they could see the situation inside and outside the back door of the pickle factory, they had to go to the field to see for sure. In addition, a few days ago, although everyone went to Ma Po Nunnery, because it was at night, they didn't see it really enough. Especially the pile of city wall bricks, if the city wall bricks used by the murderer to sink the corpse came from the pile of city wall bricks, there must have been traces of moving, and that night, the comrades went in a bit of a hurry, and because of the light, they did not pay special attention.

"Okay—go, I'll show you there."

Director Zhen led Ouyang Ping and his entourage to the back door of the pickle factory. From Director Zhen's office to the back door of the pickle factory, there are three places, the first place is the pickle processing area, the second place is the brewing and drying area, and the third place is the finished product warehouse.

Whether it is the processing area, or the brewing area and the warehouse, the most prominent feature is that there are many large and small tanks, the diameter of the smallest sauce tank is at least about 80 centimeters, and the diameter of the largest sauce tank is at least about 1.5 meters.