I'm re-reading White Witch, Black Curse. Pierce knew Trent's dad. Mia knew Pierce and a lot of key characters. I'm so curious if they will emerge in your prequel novel(s). From other novels, it also seems that Trent's great-grandmother knew Al, as did his mother. Her spelling hut sounds like a peaceful space, not fearful. I'm wondering if Al had friendlier relationships with those who summoned him before the Turn?