Seeing the Fourth Prince's actions, the Thirteenth Prince and Hongli exchanged a smile, their expressions relaxing.

Everyone hadn't slept all night. They hadn't felt tired before because they were worried about Lanqin's injuries, but when they heard that Lanqin was safe, they felt exhausted, with dark circles under their eyes and haggard faces.

The Thirteenth Prince looked at Hongli beside him, who seemed to have grown up a lot overnight, and said with heartache, "Hongli, you should go and rest first. You must be tired after running around all night. Now that Consort Xi is out of danger, we can take care of her..."

Hongli shook his head and said stubbornly, "No, I'm fine, I need to go see my mother first..."

Doctor Liang smiled and said, "Consort Xi has just undergone surgery and is not yet fully recovered. She is not awake yet, so Your Highness should let her rest and recuperate first..."

Hongli nodded again and said, "I... I'll just take a look from afar, otherwise I won't feel at ease..."

Seeing that Hongli insisted, the Thirteenth Prince stopped trying to persuade him and gave some instructions to Doctor Liang. The Seventeenth Prince said that he would discuss any matters with the Thirteenth Prince. The Thirteenth Prince then took the Seventeenth Prince to another room.

The Seventeenth Prince said to the Thirteenth Prince, "While we were waiting, I listened to my subordinates' reports. They have been patrolling the Yuanmingyuan and haven't found any other suspicious people. There's been no unusual activity in the houses or courtyards either. The garden is safe for the time being..."

The Thirteenth Prince nodded, but the Seventeenth Prince suddenly lowered his voice and leaned closer, saying, "However, there's a hidden side door where we discovered that several of the eunuchs guarding it had been secretly drugged..."

The Thirteenth Prince was greatly alarmed and asked, "Was there a thorough interrogation?"

The Seventeenth Master nodded and said, "They all say they don't remember anything, they just think they took a nap, but judging from their expressions, they've been drugged and are still somewhat delirious... This door is the most hidden and remote side gate of the Yuanmingyuan, not many people knew about it, so we didn't assign many people to guard it before..."

Thirteenth Master, his eyes dark, clenched his fists and roared, "The three assassins must have entered through this door..."

Seventeenth Master thought so too, and then asked, "So what should we do next?"

After pondering for a moment, the Thirteenth Prince instructed, "Don't alert them yet. This matter hasn't been investigated thoroughly, and the Emperor hasn't allowed everyone to leave. It's best to be cautious."

Seventeenth Master asked worriedly, "Should we inform Fourth Brother?"

The Thirteenth Prince waved his hand: "No, His Majesty is currently attending to Consort Xi and cannot leave. Let us investigate first, and then inform His Majesty of the results..."

So the Thirteenth Prince and the Seventeenth Prince decided to go together to the place where the three assassins were being held, and they even brought two imperial physicians with them.

The two wounded female assassins were on the verge of death. The Thirteenth Prince ordered the imperial physician to treat the two seriously injured female assassins first.

The Thirteenth Prince said to the two imperial physicians, "Although they are serious criminals, they are also key figures in the investigation of this assassination case. The Emperor has said they cannot die, so they cannot die. You must keep them alive..."

The imperial physician agreed and immediately began to treat them.

Then, the Thirteenth Prince carefully questioned the executioners: "Did they provide any clues?"

"Reporting to Thirteenth Master, this servant couldn't get anything out of them even after severe torture. Their mouths are sealed shut; they won't say a single word..."

Thirteenth Master turned and looked at the wounded assassins, saying, "Don't torture them yet. We can't let them die in the prison. Keep them under constant guard and don't be careless..."

The prisoners quickly nodded in agreement. The Thirteenth Prince continued, "Without the Emperor's permission, no one may be allowed in here for any reason... Continue the interrogation, and inform me immediately of any news..."