you go behind the furniture and statues
it is located in the black widows lair
Go up into the guarded room. (see related question)
it is in the statue room
Get the paper
Wait until her shadow moves away from the Security Room window, then run across.
You have the picture that shows how to move the features on the Dragon Face, and you have the key to the Supply Room. Duck past the Security Room, and hide behind the statues to avoid the lasers in the Statue Room.
In the supply room
Find out for yourself
In the Statue Room.
To pass the Security Room, wait until the guard's shadow is no longer on the window.
The key card will open the door in the Black Widow's lair, once you get past the guards. (see related question)
In the upper left of the museum.