Ch 1: Werewolves in the Mist.
Nessa hesitates when the gates swing open on their own. Like a trap, almost. She holds up a hand to her companions, shield raised. With her free hand, she weaves her fingers through the air, mouthing an incantation under her breath. A moment later, an illusionary, silent replica of herself appears. It starts to move forward, and with another incantation, the soft thudding sound of footsteps on the ground follow the illusion.
She sends the illusion through the gates, and if nothing happens, marches through herself.
Use Misty Vision to cast Silent Image of herself (Concentration)
Cast Minor Illusion for sound (1 minute)