Watcher of Antharas Theodric:
Hmmm... leather from the Tarask and Behemoth dragons? Let's see... yes these do appear to contain the power Antharas in these hides. I appreciate your time in gathering these for me. Now give me a moment...
Here, this scroll is made from the same leather you have collected from me. It allows you to teleport instantly to the Heart of Warding.
While you should have no need for it now, when the time comes for you to face Antharas again this should save you some leg work.