"If they're being locked, they're being locked. We don't have a key." "Sometimes, you don't need a key," said Sumi. Her smile verged on feral. "Somet… - Seanan McGuire

There are moments that change everything, and once things have been changed, they do not change back.

It can be easy, when hearing about someone else’s adventures in a far-off, magical land, to say “I would never choose the mundane world over the fantastical. I would run into rivers of rainbow as fast as my legs would carry me, and I would never once look back.” It is so often easy, when one has the luxury of being sure a thing will never happen, to be equally sure of one’s answers. Reality, it must sadly be said, has a way of complicating things, even things we might believe could never be that complicated.

Heroism is addictive. Maybe that's why it sounds so much like 'heroin.'