The cat came back - but not the very next day, and not in very good shape.Big Guy, a five-year-old Siamese, was found last week at Mayer Lake after he'd been missing from his Port Clements home for almost four months.Owner Natasha Campbell said Big Guy has never wandered away from home and she is mystified as to how he ended up at Mayer Lake, a picnic site about 10 kilometres south of Port.She said Big Guy was somewhat overweight when he went missing, and she thinks the extra body fat saved his life. He is now recovering at the QCI Animal Hospital, but when he was found late last week, "he was just about on his last legs," she said. "He was starving. I don't know how he managed to stay alive."Even more mysterious, Big Guy is the second cat living on Tingley Street in Port to go missing recently and then turn up at Mayer Lake.Dorothy Garrett, who runs the local SPCA cat shelter in Queen Charlotte, said an 11-year-old cat owned by a Tingley Street family was found earlier this year after being missing for several months."It's peculiar that cats are being found at Mayer Lake," Ms Garrett said. Cats are capable of travelling long distances, she said, but usually only do so if they are lost and trying to get back home. It would be extremely unusual for a cat to leave its home of its own free will and wander so far away.Ms Garrett said the two found cat cases are suspicious. It is illegal to abandon an animal, she added.Meanwhile, the cat shelter is full of cats and kittens looking for an adoptive family."They all have a story," Ms Garrett said. "We have some very sweet and personable cats here that need homes."