The police arrived soon enough to clear up the mess. Dimmock was waiting just outside the tunnel with a police car.

     You, John (he had a shock blanket lol) and Sherlock emerged from the tunnel and headed out to call a taxi. Seeing Dimmock, you stopped to have a word.

     "We'll just slip off," you told him quietly. "No need to mention us in your report."

     Dimmock looked at you uncertainly. "But (L/N).."

     "I have high hopes for you, Inspector. A glittering career."

     "I just go where you and Holmes point me."

     You started walking away and to the boys, who'd gotten a taxi and were waiting for you. "Exactly."

     The next morning, you reviewed the texts that Sherlock had sent you after the whole abduction in a tramway thing.  "Nine million for jade pin. Dragon den, black Tramway." An instruction to all their London operatives; a message about what the Black Lotus was trying to reclaim. A jade pin. Worth nine million pounds. It was to be brought to the Tramway, their London hideout. But why so much? It depended on who owned it.

      Two operatives based in London. They travel over to Dalian to smuggle those vases. One of them helps himself to something: a little hairpin, wort nine million pounds. Eddie Van Coon was the thief. He stole the treasure when he was in China. How did you know that it was Van Coon and not Lukis?  Because of the soap.  

     On the upper floor of the bank, Van Coon's old secretary Amanda was sitting at her desk, rubbing lotion into her hands, when her mobile phone rang. She picked it up.

      "Amanda," the secretary greeted.

      "He bought you a present," you said through the phone.

     "Oh. Hello."

    "A little gift when he came back from China."

     Amanda narrowed her eyes. "...How did you know that?"

     This time, your voice didn't come from the phone. It came from right behind her "You weren't just his P.A., were you?" you asked her.

      Amanda turned in surprise. "You!" She switched off her phone and scowled. "Someone's been gossiping."

     "Nope."

      "Then I don't understand, how-?"

     "Scented hand soap in his apartment," Sherlock interrupted from outside. He stepped out from the hall and into the room. "Three hundred millilitres of it; Bottle almost finished."

     Amanda frowned, confused. "Sorry..?"

     "Eddie Van Coon was not the type of chap to buy himself hand soap," you told her, wrinkling your nose. "Not unless he had a lady coming over. And it's the same brand as that hand cream there on your desk."

     Amanda lowered her gaze. "It wasn't serious between us, it was over in a flash. It couldn't last; he was my boss."

     "What happened?" Sherlock asked her softly. "Why did you end it?'

     "I thought he didn't appreciate me. Took me for granted. Stood me up once too often- we'd plan to go away for the weekend and then he'd just leave; fly of to China at a moment's notice."

      You glanced at the small green hairpin in Amanda's hair. "He brought you a present from abroad to say sorry... Can I... just have a look at it?"

      Meanwhile, in Sebastian Wilkes' office, Seb was begrudgingly signing a cheque for twenty thousand pounds. John stood across the desk from him, waiting patiently. He had a butterfly bandage on the side of his head where he'd been whacked with the gun.

     Seb stuck the cheque in a large envelope and looked up at John skeptically. "Did he really climb up onto the balcony?"

     John nodded with a smirk. "Nail a plank across the window and all your problems are over."

     Sebastian shot him a look and reached over to give him the envelope. "Thanks."

     Back with Amanda now, she held her hair in place with one hand while pulling out the jade pin with her other. She placed it in your outstretched hand. "Said he bought it in a street market," Amanda told him.

      "Oh, I don't think that's true," Sherlock mumbled. "I think he pinched it."

     "Yeah, that's Eddie," Amanda murmured ruefully as you inspected the pin with Sherlock.

       "Didn't know its value; just thought it would suit you," you said. 

     "Oh?" Amanda leaned forward with a little smile. "What's it worth?" 

     "Nine million pounds."

     Amanda's smile dropped. She stared at the pin in shock. "Oh, my gosh- Oh my gosh!" She stood up suddenly, nearly kicking her wheeled chair over. Sherlock chuckled. "Nine million?" she shouted in disbelief, her hand over her heart. 

     The next day, the top story in the newspaper was titles, "Who Wants to be a Million-Hair?" You couldn't help but think of what a sad life the person who wrote that title must lead.

     "Over a thousand years old," Watson muttered, almost in a complaintive manner, "and it's sitting on her bedside table."

     "He didn't know its value; didn't know why they were chasing him," you told him.

     "Hmm. Should've just got her a lucky cat." 

     Sherlock laughed at that, but then quickly replaced the happy look with a frown. You gave him a frown of your own. "You mind, don't you? That General Shan escaped. It's not enough that we got her two henchmen."

     Sherlock nodded admittedly. "It has to be a vast network, (Y/N). Thousands of operatives. You and I barely scratched the surface."

     "But you two cracked the code," John interjected. "Maybe Dimmock can track down all of them now that he knows it."

     You shook your head. "We cracked this code. All the smugglers have to do is pick up another book."

But heyyyy, at least they got paid, amirite? 20,000 pounds, I mean, that's a lot. And since you helped out, Sherlock and John have to give you some, so maybe you can persuade Moffat and Gatiss to include Johnlock in the series. C'mon pal, do it for the team.