The Testament of Sherlock Holmes Walkthrough

Table of Contents

LONDON SEWERS – Uncover the Plot

  1. Approach the writing desk in the corner to read the newspaper and examine the broken pipe in the left side drawer to activate the next cut scene.
  2. Make your way over to Holmes’ door to activate the next extended cut scene and travel to the sewers in the Thames area, then turn around and move forward to pull on the rope attached to the body in the water.
  3. Achievement / Trophy Unlocked: Watson Alone (Bronze): The one fixed point in a changing age.
  4. Take the grappling hook and move back towards the previous ladder to pass in front of it, then inspect the cigarette butt on the floor and continue forward through the sewer tunnel.
  5. Approach the next ladder ahead on the left to pull out the top rung and and use it on the large grate beside you to dislodge the rusty bar, then continue down the sewer tunnel to collect the wire hanger from the pipe at the end and check the indicated spot in the water behind you to raise the trapdoor.
  6. Combine the two rusty bars with the wire and insert it into the trapdoor’s iron ring so that it stays propped open, then turn right to look towards the opposite side of the sewer tunnel and use your grappling hook to pull the boat halfway over to you.
  7. Step on the trapdoor to enter the vessel and pick up the blood-soaked scarf, then collect the piece of iron that was hidden beneath it and continue forward to reach the other side of the sewer tunnel.
  8. Check the ground at your feet upon exiting the boat to discover the footprints and move down the tunnel to find more of these tracks by a floor grate, then use the scarf in your inventory to wipe the grime off the drain’s metal panel and insert the piece of iron into the slot above on the right to open it.
  9. Rotate the peg around the grid to insert it into the indicated circular symbol and remove one of the locking bars on the right, then repeat this task two more times to unlock the grate and enter the open manhole to leave this location.
  10. Achievement / Trophy Unlocked: Lazarus (Gold): An isolated phenomenon? A brain without a heart? I trust that you did not judge me so quickly!

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11 Comments on The Testament of Sherlock Holmes Walkthrough

Taryn Wilson

On November 10, 2012 at 5:37 am

Hey I have played the first three chapters of The Testament of Sherlock Holmes and I am stuck on chapter 4 The Bishops Murder. I have followed the walk through but I cannot get the reverend to leave the room. I havethe first few deductions but when it comes to having the last two deductions I only have one and that’s flask. I am very confused and stuck as I have followed all the instructions. Please help or send me suggestions.

Kevin Thielenhaus

On November 12, 2012 at 11:33 am


Sometimes the order of events is important, and completing every step can be unclean. If you’ve missed something, try asking for hints and you’ll be pointed in the right direction. Press [LT] or [Space] to ask for help in-game, and you’ll earn an achievement for doing so!


On January 10, 2013 at 6:13 pm

It won’t let me get the letter from the filing, in Farley’s office. Help?

Kevin Thielenhaus

On January 11, 2013 at 10:08 am


Hmm. To get the letter from the filing, make sure you have read the note from Farley’s Desk. To open the filing cabinet, you’ll need keys from a small table in the same room. To find the correct note in the filing cabinet, look for a card with blue ink and some grease on it.

It sounds like a very tricky puzzle, is this what you’re having trouble with? If not, I’ll keep looking for a solution to your problem.


On July 21, 2013 at 11:43 am

I see that you can open the safe by inputting J-16-P, but how is one supposed to have figured that out?


On July 23, 2013 at 1:12 pm

I dont understand the finishing! whose command was moriarty obeying? nd who was that girl? please explain the last story!


On December 5, 2013 at 2:24 pm

Yes who was Moriarty taking orders from at the end ??

theresa williamson

On February 8, 2014 at 1:55 pm

Hi can anyone help me please im stuck on the opium den I have got everything but the spoon to put on the burner can anyone tell me where the spoon is please as I cant go any further thank you

Kevin Thielenhaus

On February 10, 2014 at 1:54 pm

@theresa williamson,

The spoon is located on the floor, in the center of the back room. There’s a green rug with bowls scattered around the floor. Try looking straight down and wandering near the bowls to spot the investigation icon.

Sherlock Holmes

On May 13, 2014 at 7:41 am

How come they can’t film 3 episodes in 2 years!!


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