'What did she say?' Sherlock asked as soon as the consulting criminal entered the room again.

'She said she'd crush me if I hurt you,' Jim replied as he walked over to the detective.

'That was nice of her,' Sherlock said, not really paying attention to the string of conversation. Moriarty dropped the end of it and picked up a new one.

'What have you found?'

'Running blood tests now; results should be back soon.'

Jim looked at the computer screen. Data and statistics covered the screen, running tests on the sample. Results appeared onscreen as they came, and Moriarty took in all the information he could get, mind working to form a conclusion.

'We were right,' Sherlock breathed out. 'Ricin poisoning.'

Moriarty looked at the results. 'What do you think it means?'

Sherlock turned to him, looking at him for a long moment. He was stuck in a state of inactivity for a few seconds before jumping into action at the nearest computer screen. 'This is familiar.'

'I thought so too.'

'1978.'

'Hmm?'

'In 1978, Georgi Markov, a Bulgarian writer and journalist who was living in London, died after he was attacked by a man with an umbrella. The umbrella had been rigged to inject a poison ricin pellet under Markov's skin.' He beckoned Moriarty closer to the screen and his counterpart complied.

There on the screen was an internet page on Georgi Markov and the circumstances of his death. Moriarty scanned through it quickly and turned to Sherlock. The detective was already looking at him eagerly.

'So someone's copying a killer from the 70s. Do you think this was a singular attack?'

'Nothing else of the same type has turned up so far, so it must be.'

'Was the original killer ever caught?'

'They claimed it was Francesco Gullino, but as far as I'm aware, there was no concrete evidence to prove it. Anyway, I don't see how the two could possibly linked in any way, so it must be a copycat.'

'That makes sense.'

'Do you know anyone in your network who would use poison? Specifically ricin?'

Jim gave him a long stare. 'I may be leaving my network, but I can't just hand these people over to you. That's not how it works.'

Sherlock nodded. 'I understand.'

'I don't know anyone anyway,' Jim said after a moment, 'this is new to me. Had to be done by someone high up though; not many places you could get a device like that developed.' He paused in thought.

'What?'

'Maybe it was the government. Your big brother isn't the angel he likes to play himself as, you know.'

'I know. Still, Ainley was a normal man, as far as evidence indicates. Why would Mycroft have reason to kill him?'

'I don't know,' Jim said as he turned to look at the window in the laboratory door. 'Why don't you ask him yourself?'