U4: Koridwen (U4 #2)

“My name is Koridwen. I’m the last survivor of a hamlet in Brittany. Before she died, my mother told me about a strange trunk left by my dear grandmother, who was something of a witch. Inside, I found an incredible letter that predicts a magical fate and a crucial mission. But I’m troubled by the similarities between this prediction and the message Khronos sent out just before the internet shut down… This meeting is where I’ll find out who I really am…”

You choose which volume to read first. The first four are parallel stories, so it doesn’t matter which one you start with. But you must finish with Khronos, where the four threads are finally brought together.