Each adventure book features 12 missions, the first six of which are the same in both books, and then the last six are specific to the setting. They can be played through as a campaign or as individual missions, supposedly getting harder as they progress (I have only played the first three so far so can't really comment on the difficulty of later missions).
From 2011, Wizards of the Coast entered the eBook market and as well as releasing a number of Forgotten Realms novels in both paperback and eBook, some titles were available as eBook only (and also only available for purchase and download in the U.S.). These titles are listed below. There are currently no plans to release these titles as a printed book or to make them available outside of the U.S. Note that only novels which are produced soley as an eBook (as opposed to also being available in printed format), are listed within this section.
Forbidden Fortress includes two books, the first is the rulebook and details everything you need to play, including getting your first introductory game going. The second book is the adventure book and has background information on the setting, heroes and details of several campaign games to try out, along with details of the Shadows of Brimstone setting as a whole.
We decided to start with the introductory mission from the rulebook, Lost Contact. Our adventures would be entering the Forbidden Fortress, looking for 2 clues to find the whereabouts of the missing garrison. 2b1af7f3a8