Holmes prison escape

[le-froufrou.livejournal.com]

I'm looking for a canon!Holmes fic that involves Holmes escaping from prison. I don't remember why he had been arrested but in prison he falls ill (and possibly even dies?). He then mysteriously disappears from the locked room, baffling everyone.

Watson and the police are there, and they suspect that Holmes has hidden himself in a coffin and is being transported out of prison. So they run across the street where the coffin is being loaded onto a carriage, but Holmes is not there.

In reality, Holmes had feigned his illness and, once in the infirmary, impersonated the guard or doctor (I believe he had a red beard) and simply walked out, possibly even right in front of the police and Watson.

I'm afraid that's all I've got - does it ring any bells?

ETA: Found, thanks to crimson_bride: The House of Silk by Anthony Horowitz.