Cynthia nods, holding out the pen and wiggling it a bit, the insides making a slight sloshing sound. While the book doesn’t require any sort of health or pain to use, it does indeed have a cost- you have to use TCP fluid as ink!
Her tone shifts to a more gentle, reassuring one at the sight of your team tensing up- she promises that this is her own fluid, and that acquiring it was completely painless AND safe. She rolls up her sleeve and reveals that her arm is completely wound and scar free, thanks to Marvel’s surgical skill.