On a quiet evening in May 1987, Jan Bevington was sitting on a beach in the village of Hillswick, on the north-west mainland of Shetland, when she spotted something being washed helplessly up and down in the surf, a newborn common seal pup, abandoned and struggling to survive on its own. At the time, no one on the islands knew how to properly care for a stranded seal pup, so Bevington rang a seal sanctuary in Cornwall for advice and took the animal in herself.