Amanda, Topaz, Megan and Clea get caught in the citywide fight against the crabs, and make a snap decision to involve others.
( I hate to suggest dragging more people into this... )Namor, Meggan and Alani take on the task of trying diplomacy with a nature spirit. They make some headway in rough waters, but only manage to negotiate the spirit into not actively making things worse. She will call off any more crabs, but perhaps not stop the ones already calling down destruction.
( Bargaining involves having something each party desires. We bring only the threat of retribution. Would you trade this creature another city? It has not offered peace on any terms. )