Yeah but, also powered by the dead, which Sefton's definitely not going to go into.

"Nope," he says bluntly. "At least, I don't know. Like - this one, a witch did manage to make him more real, give him more power, so possibly she could make it less. But that power comes from acts of violence, in this case killing the poor sod in question. So I've got to disapprove of that kind of thing.

"But that's what your resentful energy reminds me of. The power caused by sacrifice."

And that's new, Sefton realises. At home he couldn't tell what was sacrifice and what was remembered. Not even Losley could make that distinction. If he can remember the things he sees here, he can bring that back and do...

...well, who knows? Something.