So, up to 8 minutes for his Wisdom to wear off, at up to 2 minutes per caster circle, and then some more time to think after that if necessary, and then they should reconvene for another run on Probability... Keltham probably should have thought to set that schedule before sending people off to their bedrooms to think.  Well, he'll send somebody around to knock on doors for a 5-minute warning in about 10 minutes, say.

So, up to 8 minutes for his Wisdom to wear off, at up to 2 minutes per caster circle, and then some more time to think after that if necessary, and then they should reconvene for another run on Probability... Keltham probably should have thought to set that schedule before sending people off to their bedrooms to think.  Well, he'll send somebody around to knock on doors for a 5-minute warning in about 20 minutes, say.