The Secret Chamber

Your friendly guide to The Secret Chamber side mission in Borderlands: The Pre-Sequel. Learn how to find all three ECHOs and unlock Zarpedon's chest.

So, you've stumbled upon 'The Secret Chamber,' huh? This is a neat little optional mission in _Borderlands: The Pre-Sequel_ that's more about exploring and a bit of backtracking than intense firefights. Let's get you through it. ## Walkthrough ### Objectives Here's what you'll need to do: * Plug device into console * Head to door * Open door * Collect first ECHO * Collect second ECHO * Collect third ECHO * Return to door * Open door * Open Zarpedon's chest * Pick up last ECHO ### Strategy This mission is pretty chill, enemy-wise. It mostly involves revisiting areas you've already been on the derelict warship _Drakensburg_. First things first, plug that device into the console in the Bosun's room. Your next stop is the Crew Quarters. Look for a door in the southeast corner. It's locked by Zarpedon's voiceprint, so [Pickle](https://borderlands.fandom.com/wiki/Pickle