"We can practice, if you like. Until we are certain of what works."

Because it is all guesswork, isn't it? All the possible approaches in the world will work for one person or another, but what works for Abby won't be guessed at. They'd have to test, as much as she cared to attempt.

Whether or not she attempted those tests with Ellis was no matter. Not to him. It mattered that she found a way forward that made griffonback tolerable.