Board Thread:General Discussion/@comment-188.67.203.72-20150623103547/@comment-7471485-20161218091410

The map might just be lying on the floor nearby. I play on the 360, and every so often when I come into the cistern, the East Empire map, the model ship, and/or the Queen Bee statue might have been knocked off their shelf for no reason, but they're always easy for me to find, and the entire collection will re-sort itself onto the shelves after 10 in-game days, provided you don't take any of it.