Can't Load maps from Acquisitions Incorporated Book

I'm pretty new to Roll20, so this may be a general  ignorance things, but I cannot seem to find the maps from the AI book to load into the play area. I added the book to my game, but I can only see the Character Art pack in the Art Library. Can I get some guidance ? 

The adventure is a game addon which needs to be enabled on your game's launch page.&nbsp; If you have already done that, the maps should already be set up as map pages. <a href="https://wiki.roll20.net/How_to_Access_Marketplace_Content#Game_Addons" rel="nofollow">https://wiki.roll20.net/How_to_Access_Marketplace_Content#Game_Addons</a> <a href="https://wiki.roll20.net/Page_Toolbar" rel="nofollow">https://wiki.roll20.net/Page_Toolbar</a>