From the Official Website:
Unlike ordinary storybooks, DestinyQuest® puts you in charge of the action. As you guide your hero through each adventure, you will be choosing the danger that they face, the monsters that they fight and the treasures that they find. Every decision that you make will have an impact on the story and, ultimately, the fate of your hero.
Your choices, your hero
With hundreds of special items to discover in each book, you can completely customise your hero. You can choose their weapons, their armour, their special abilities - even the boots on their feet and the cloak on their back! No two heroes will ever be alike, which means your hero will always be unique to you. And even better, you can take your hero into battle against your friends' heroes too!