R1T23: “Get Off The Bridge!” shouts Fronaldo. Then the green goblin gathers several vials of various alchemical agents and applies them to his dagger.
Spoiler: Fronaldo
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You don't move anywhere, as Book is one sq. SE of you.

R1T22: Aron, who really can't shout loudly enough to be heard, turns to Xhanfaerd.
Spoiler: Said to Xhanfaerd, but heard by Gelik, too
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"Hey, we've gone a few days without a collective active. Tell everyone to not leave the bridge but to engage. That way, this threat is taken care of here and now, and they don't come back to attack when the expedition crosses."
Aron then defensively casts a spell on herself that makes her very hard to see clearly as she seems to vibrate at incredible speed. She then takes out her bow.

R1T21: Book, what do you do? You didn't hear what Aron said to Xhanfaerd, but it doesn't look like she intends to take Fronaldo's advice.