"All right," Sabina said, stepping forward and raising a hand. Someone needed to take point, and it might as well be her. "Those of you with martial skill -- Flynn, Mister Baines, that means you -- get in there and get the book. Flynn, I imagine you can distract it while Mister Baines gets his hands on the tome?"
Without pausing, she eyes the two other gentlemen. "Mister Wolfe, Mister Barnard, while Water is the spell of choice for battle with wyverns, I would suggest we hold off on it whilst trying to recover a book. I agree that immobilisation is like as not the right tactic. The creature is immune, however, to Petrify, Stop, Disable, and Immobilize. We'll have to be creative." The libra spell glimmered in her eyes. "For the record, Silence, Sap, Lure, Berserk, Charm, Confuse, and Disease are also out." While they digested all that information, she set about casting Haste on both of the mages in question.