a.) That can be arranged.

b.) Problem is, no PC has heard of her powers yet.

c.) Doesn't change the fact that Abigail can, conceivably, remove people's loyalty to their cause, turn friends into enemies, and basically say: "Your character now hates the people who they worked with for the entire RP, and must spend the remaining pages acting against their interests."

d.) My bad.

Edit: @Potato, if the next plot hook involves a raid on Avalon, how can we, aka the Heroes, attack it without doing an illegal act?