Story Keeper is a unique temporary trophy which you get as a reward for successfully completing the Darkwood Stories event. Once you obtain it, the trophy will appear on your desk next to your guardian. Like other trophies, Story Keeper regularly gives you valuable rewards.
 

   

After you receive a reward from the trophy, a timer will appear that shows how long until the next reward. You can also pay rubies to run down the timer instantly.

   

 Furthermore, you can get special rewards by visiting friends who have won the Story Keeper trophy. To do this, visit your friend's map and tap on the trophy. You can obtain rewards from friends' trophies every day.