I believe so. Ayakashi probably are drawn to strong sources of energy... or potential targets for it. So if any of them take an interest in something in particular, that will probably be our target. Perhaps the crystal ball itself.

If they're only in it from greed... well, we'll have to deal with the fortune tellers and find a convincing way to make them stop.

[Preferably without having to resort to the old demon ways of scaring the hell out of them. But sometimes fear is an effective teacher.]