The Origin Of The Entity (Fan Origin)

Long ago in the middle 17th century, in the town that would some day become Weeks, lived two siblings Saren(brother) and Zera(adopted sister,important later), one day the two found a mysterious tree growing on the outskirts of the town and noticed an odd fruit on its branches, Saren knocked two down by climbing up the tree and inspected them, then Zera suggested eating them as they looked like apples only slightly larger and glowing with an orange/yellow glow but when they eat them, they were both changed forever.