The Amulet of Daylight is an ancient object with magical properties that was created by Merlin to protect Trolls and Mankind alike. It's activated by the Trollhunter using the phrase "For the glory of Merlin, daylight is mine to command". The Amulet also responds to the emotions of the Trollhunter to protect them.
Becoming, Part 1
An average high school student, Jim wants more adventure in his life and he gets it when he finds the Amulet of Daylight on his way to school. Just what exactly is a Trollhunter, anyway?