I have already solved this
first you must pass the self-awareness test,that is to light the three pillars.
then it will show you three books,to solve the riddle of library ,you must infer to the books..
now I will show you
first:light all the candles except the middle one,until a lightning strikes
second:light only the middle candle,and wait for the lightning
last:light any three candles,and wait for the lightning
the gate will open
im not sure you talk about what he means,
anyway im not sure if i do, but if you mean the room with the closed room inside where a leandras diary lies on a pillar then the riddle solves like this and why.
In this room ( library ) you find a book " the necronomicon of cooking" read it:
It is written by E.N.S West ( thats his name lol )
on the stairs you see a big compass but the northsymbol points towards the right, which is east according to your minimap compass.
In this library there are 4 hidden pressure buttons.
On right by the stairs beneath the middle coal..light
one on the right wall from the middle room
one on the top side of the room on a wall.
and the last one left-upper side of the room also on the wall.
NOW imagine this 4 buttons like they are placed in the directions north east west south and so on.
PLUS think of their directions not with your minimap but with the stone-compass on the stairs, like the directions are changed to 90ï½° to the right.
then remeber the book E.N.S West.... which means east norht... etc. so press the buttons in that order.
translated to your minimap: first the one beneath the cole, then the one on the wall from the inner room, then the left-upper one and at last the upper one. The magical wall disappears...took me 30 minutes and 1.230.043 nevers.
