We don’t know what happened, but when Jamie found Milllie on the dock this morning (using her tracker) she was soaking wet apart from the top of her back and head.
Anyone who knows cats will be aware that the biggest killer is kidney failure. The only test worth a cat taking is the relatively new (2 years) SDMA test. It detects kidney failure early. Jamie held her while the vet’s assistant gently pushed Millie’s head up and the vet coaxed her to accept first a razor (to remove some fur) and then a needle into her jugular.