When you start on the left side and reach the first junction, you have to continue down. Otherwise the SW vertical path can't be reached anymore.
But it's exactly similar when
exiting the trapdoor area...
Click here to view the secret text
×So, do the complete vertical stretch W at the start of the trapdoor tour
Click here to view the secret text
× and the complete E stretch at the end.
Does that help?
____________________________
Autocorrect is
not my friend. Apologies for the typos.
[Last edited by Dying Flutchman at 07-17-2020 08:28 AM]