The series was labeled DL 1 through DL 14, but DL 5 was a supplement that had statistics for the characters from the books, and DL 11 was a tabletop wargame with cardboard counters and a hex map.

That leaves 12 actual modules. Of course, a bunch of them are only alluded to in the series, which was irritating.

Also, the characters met gully dwarves, not gnomes.