Solution to M: Act 0 Meta
Solving each puzzle in Act 0 yielded an image. Each image is a word encoded with braille, as hinted by the text. Each letter is represented by arms extending from the center line instead of a dot. Translating the words from braille gives the words "KING", "QUEEN", "HART", and "LIBRARY". This hints to the answer "GERSTEIN", as it is the library surrounded by Queen's Park Circle, Hart House Circle, and King's College Circle.
GERSTEIN