You click on the nearest book shelve and a stairway appears that leads to the bottom floor. (The bottom floor is actually the dungeon.)
The McM thing is on the bottom floor in the library. The library is in the castle.
In the library on the bottom floor there is a green brick on the wall click on it .it will lead you to the dungen.
Go to non-fiction area in the castle library and click on the full sheets of paper ubove the word that says McM.
on 1 of the BOTTOM doors in the castle
The library is in the Castle, to the right on the first floor. The three areas of the kingdom are the Village, the Castle, and the Mill.
The library slip. Get the gold coin from the fountain outside, and pay your admission. Get the library slip from the right side, and take it to the castle library (castle first floor right).
Mordred had often been going to the same location in the castle library (castle, first floor right).
The LIBRARY SLIP is in the Mordred Museum. Get it by using the gold coin in the fountain outside. The CASTLE LIBRARY is in the castle, first floor right. On the lower aisle is the shelf McM that is listed on the library slip.
You have to take the gold coin from the fountain and pay your admission to the Mordred museum. Get the Library Slip from the stack of books. Go to the castle library (first floor right) and to the bottom aisle, non-fiction, and press the shelf labeled Mc-M.
The McM is on the bottom floor in the library. You can click on the mcm if you have the library card. The library card is in Mordred's house museum.
get the library slip after you get the gold nugget then go and pay to see Mordred's house then click on the piece of paper under the bed then go to the library in the castle the after that click the colored brick right after you go on that bottom floor then go into the dongeon
The royal library is in the castle, on the first floor, to the right. The castle is just to the right of Main Street. Before going there, get the gold coin from the fountain and enter the Mordred Museum. You will find a Library Slip in a stack of books there, that will allow you to enter the castle dungeon by clicking the scroll (Mc-M) on the lower aisle in the library.