On the upper floor, however, one of the bedroom doors was locked.
"There's someone in here," cried Lestrade.

"I can hear a movement.

Open this door!" A faint moaning and rustling came from within.

Holmes struck the door just over the lock with the flat of his foot and it flew open.

Pistol in hand, we all three rushed into the room.
But there was no sign within it of that desperate and defiant villain whom we expected to see.