Just like when he came, no one saw him at all. When he left, Li Yan didn't close the door downstairs; it was wide open. The whole building was rented by them, with no other tenants. The best way to get the situation inside discovered and reported would be to set a fire.
But if that happened, it would destroy such a good scene and burn the drugs. Wouldn't that cause more trouble for the police? They would have to find out the reason for the fire and whether it was arson. With the current internal strife and deadly struggle, leaving behind a large amount of drugs means solving a murder case while capturing drugs, isn't that giving two achievements to the police? Without obvious doubts, if they have the energy, they would be tracing more valuable sources of drugs, drug directions, and the like.
...
Back in the city, Li Yan untied and woke up Huang Feng, giving him a bottle of water.
