Olivia glanced over her shoulder into the cell. Abubakar had already got one of the ponies unchained, and was holding a syringe over her neck. The chilled medical cooler sat open on the ground in front of him, breathing out icy vapor into a low fog on the floor. He already had one of the samples, from the look of it, though Olivia couldn’t tell for sure. She didn’t want to take her eyes from Salvadore.