Destroy False Wall (1) | A Fire in Sawmill The Testament of Sherlock Holmes Guide
Last update: 11 May 2016
Use a spade to make a hole in a false wall. Holmes says that iron bar holds it. You need to pull it out.
From a pillar nearby entrance take a rope.
Use it on a iron bar.
Then approach a millstone and wrap it around with the chain you've taken from an arsenal.
Join the chain with the other end of rope.
Unfortunately, the cog is missing - maybe it fell downstairs.