"Aidan the Nurse, Co-Caroline the explorer." Coraline said only slightly slipping up on her name. Coraline coughed to mask the slip up, pretending to be thirsty and taking her bottle of water out her bag. "An invisible fence actually. Well, not invisible but it's there pylons or something. The fence and the collars keep them locked in."

Coraline slowed down as they neared the boundary and smiled at Aidan. "So, are you ready or do you just want to... hang here and see if any come close to us."