After a detour away from and back to the Library and surrounding it – or rather, walking a path that you think captures most of its outer walls at least once –, you begin to get some understanding of the structure of this intertwined institution. Focus, concentrate your knowledge, and suddenly, a realization of pure logic hits you: How could you miss it? The entrance is hidden in plain sight.
As you enter, you approach the Organic Organizer. You say your name, and they give you a loop of string, with a card hanging from it. Your arrival had been expected: the card had already been inscribed with your name. It is stamped 'MFCS'. ("To be safe," they explain. From what, they neglect to mention.) Then you are pushed inside.
The library has a legitimate interest in knowing what it contains.
Bag checks are not possible.
It seems the most direct way.
Go