Star Wars Episode I Adventures

From Wookiepedia:

Episode I Adventures was a book series by Scholastic. The books were written by Ryder Windham, Dave Wolverton, and A. L. Singer. Episode I Adventures replaced the original Star Wars Missions series in 1999.

User summary:

This series followed the Star Wars Missions books, and it shares their mail-order distribution and their unusual linear format. Like those books, the first delivery of this series consisted of a boxed kit containing dice (ten- and twenty-sided rather than the six- and twelve-sided of the original series), a rulebook, score sheets, a blank notebook, a set of cards and the first adventure. This time, though, rather than featuring linear chapters and an interactive portion in a single volume, each adventure is split into two books: a linear novel that can be read completely by itself, and a separate gamebook which can optionally be used instead of the middle portion of the novel. When using the gamebook, the reader reads the novel up to a point where he or she is referred to the gamebook, then runs through the interactive portion of the adventure. As in the Star Wars Missions, this is a linear sequence of encounters that requires an initial selection of cards (in the same categories as in the Star Wars Missions but with a broader category of "devices" in place of weapons) and features a running score to keep things interesting. After the interactive portion is done, the reader is referred back to the novel, where the story is concluded.

The fifteen books of the series make up four distinct storylines, each focusing on different characters and written by a different author (although Ryder Windham wrote two storylines). The first three plots take place before the Star Wars Episode I film, and the final storyline is actually an adaptation of the movie itself. With those final books, the series concluded, and nothing more was released even when Star Wars Episode II arrived in theaters.