Melusina gave the Count many beautiful children.
But one day, Siegfried's curiosity got the better of him. Wondering what on earth she might be doing alone all the time, he peeped through the keyhole, and was shocked to see that Melusina was lying in the bathtub, with a fishtail hanging over the rim. Mermaids like Melusina have a very keen sixth sense, which tells them instantly that they are being watched, and thus she recognized her husband through the door, and jumped out of the window into the river Alzette below, never to be seen again. Except every now and then, some people say they have seen a beautiful girl's head pop out of the river, and a fishtail rippling the calm waters of the river Alzette.
In Bäringen, Germany, during a wind storm, they say that Melusina is crying for her children.
Another tradition states that, on Christmas Eve, the people shake the leftovers from the tablecloth so that Melusina, sometimes also known as St. Melusina, might also have something to eat.