The Tower of Elmarsh

From BoardGameGeek:

The Tower of Elmarsh is a roll-and-write open world adventure gamebook for 1 player, which sees you travel across the land with a party of rogues, smiths, adventurers, rangers, clerics and the ccasional Hawkguard. Help the good folk of Brighthelm, take on a variety of quests, make friends and allies along the way and turn your group of enthusiastic villagers into warriors. Discover the land's many secrets and powers, and come home a hero. But don't dally: time is short, and the threat of a moon strike is ever growing. -description from the publisher