The Dragon's Demand and robbing Hunclay's Manor

[Mighty Squash]

I'm running Dragon's Demand in Campaign mode for a local PFS group, and I can't find any reference to what to do with rewards etc if the characters steal things from Hunclay Manor in Chapter 2.
The text seems to assume parties will always be honest about that part of the adventure.

What would be an appropriate way to penalise the group for stealing a rather valuable collection of spellbooks?

[GM Lamplighter]

If this is for PFS credit, they don't get to keep anyrhing not on the Chronicle, so no real harm done - all the loot is accounted for. Whatever happens in campaign mode stays in campaign mode and doesn't affect the PFS side of things.

[Mighty Squash]

Thanks
For within campaign mode I will just make something up