O neno sardiña (S)

At an undetermined point on the river Miño, apparently in northern Galicia, a sardine-child crosses the stream, leaving behind those celebrating his burial at the end of Carnival. It is unknown what causes his transformation, but it is said that the most attentive eyes can closely capture the moisture on his skin. Its existence is confirmed by the most sceptical in the area. No one in the area doubts it.