Quote from : Fire Book

She understood now that while it had been wrong to kill Cansrel, it had also been right. The boy with the strange eyes had helped her to see the rightness of it. The boy who'd killed Archer. Some people had too much power and too much cruelty to live. Some people were too terrible, no matter if you loved them; no matter that you had to make yourself terrible too, in order to stop them. Some things just had to be done. I forgive myself, though Fire. Today, I forgive myself.