Shiver, or Shiver Born of Winter, is a female snow leopard, and one of Ghost's adoptive sisters. Shiver cared deeply for Ghost, even after finding out that they were not related, nor were they even members of the same species. When Winter perished during an earthquake, Shiver was the only cub of Winter who did not hold Ghost accountable for their mother's death, but accepted it as consequence for the earthquake. That, coupled with her frail condition, prompted Shiver to travel to the Bamboo Kingdom with Ghost.