Break a leg up there, and I'll be down here hopefully breaking someone elses.
To lose an arm or a leg would be painful, but to lose the central truth of your life felt—fatal.
For a moment Clary thought she might fall; she felt as if something essential had been torn away from her, an arm or a leg, and she stared at Jace in blank astonishment-- what did he feel, did he feel nothing? She didn't think she could bear it if he felt nothing.