He nods at the statue, and the moment the Woman opens the door, he releases the pen, aiming it at the door. It fires like a shot, extending outwards and hitting their assailant---the woman from the clothing shop---in the forearm where she had raised a gun. She cries out a word that Sherlock can only assume must be a swear in Chinese.

He leaps forward, throwing the still-fizzing extinguisher aside and kicking the gun away from the woman.

"Now!" he calls out to the Woman.