Sherlock star and co-writer Mark Gatiss has revealed Dr Watson may not be pleased to see Sherlock, when he returns from the dead in the new series.
The last cliff-hanger episode of the hit TV show saw the super sleuth, played by Benedict Cumberbatch, and nemesis Moriarty plunge to their apparent death from the roof of St Bart's hospital in London.
Mark revealed that – as in Sir Arthur Conan Doyle's story The Adventure Of The Empty House – Sherlock will surprise his friend Watson (Martin Freeman) when he reveals he faked his death.
And Watson won't be quite as understanding as he was in the original story.
He said: "There's certain things about The Adventure Of The Empty House which feel set in stone because that's how Sherlock comes back, but at the same time we feel free to invent and to introduce new stuff to it.