Hi, I'm sorry if this is the wrong forum for this but I'm reading Silmaril and I got to see the Mirror Snake for the nth time in glowfic so far. I'm really curious about where the idea came from does anyone know?
Dreamward, I'm pretty sure! A portal snake one time ate another portal snake and then it was no longer in Dreamward, cue shenanigans where it eats other people and transports them away.