The pair of them were mates, and they were also power shifters. While most Shifters only had one other form, power shifters could shift into any animal or anyone, and they were rare. So rare, Theon only knew of six of them in the Underground. They could also shift energy and matter, but they did each have a preferred form. Kylian favored a large, black jaguar, while Giselle often shifted into a giant python.
