I believe Quint and Hal agreed that covering the throne in a stone shell would be more effective, so depending on the timing of the encounter, Van may have done that.
Hal will be crafting in his workshop on four of the evenings. He'll be keeping his entire group on alert, and ready to run through the new doorway to Hexor if the alarm is raised.
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Headband of Intelligence: (1d20+20)[39]
Headband of Wisdom: (1d20+20)[33]
Van and her pack of hell hounds, moon dogs, and tatzlwyrms will be there as well. Instead of playing with the beasts she'll be sitting quietly, lost in thought.
Moon stays in her stable/lightning-scarred room. The Hydra is as mentioned, but didn't we have a minotaur as well? The one from the preservation room. He'll go on the second floor with the former adventurers.
Hal will be very vocal in his admiration of the hunters who captured the hydra and give them each a head as a trophy. Zikomo is asked to have his tribe stay vigilante for signs of scouts in the surrounding jungle and be ready to defend their village.