Dragonlance Chronicles

Weis and Hickman, the same world of Krynn, and a direct continuation: Legends follows Raistlin Majere out of the first trilogy and makes him the centre of the second. Both were published by TSR as fiction attached to the Dragonlance campaign setting, so the shared universe is a commercial fact as much as a narrative one.

As direct as this relationship gets: the novels were written by TSR employees to accompany a D&D campaign setting, and the plot follows the published adventure modules. Weis and Hickman played the campaign as they wrote it. The party is a character sheet made legible: a warrior, a cleric who has lost her faith, a failing mage, a kender thief. Krynn's magic obeys the game's rules, including memorised spells that leave the caster once used. Filed influence rather than adaptation deliberately. There is no single prior work being retold: the game supplies the world and the rules, the novels supply the story.