Simply walk in
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From: The Source of all Water
If no one is there, what's left to disturb?
Unlocked with 
Firmament exactly 110
Success
Whale-hold
You take refuge in audacity, and also the ladder. […] You look one patrol dead in the eye […]. They make no attempt to follow, as though […] rather have you below than above.
[…] the Leviathan is colossal: […] eventually you reach the under-gantry, below the whale.[Find the rest of the story at https://www.fallenlondon.com]
You are exploring the Midnight Moon's secrets. (Sets 
Firmament to 111 - Find the source of the rain, somewhere in the Moon)
