[In the past, Kanaya would have found it odd that Sophie found it odd, but she has a much better picture of human standards now.]

I am to guard and nurture the Matriorb. It will hatch a new mother grub, which will in turn give birth to more trolls, much like a queen bee in a hive. As the last mother grub is now dead, the Matriorb in my possession is essential to the survival of my race.