Three twins? It does sound rather odd, doesn't it? But this is another
of Emil Tischbein's adventures with his old friends, the Professor,
Gustav, and Little Tuesday. This time they are by the sea, but of course
their seaside holiday won't be ordinary. And when they become entangled
with the mystery of the three acrobat twins and the wicked Herr Anders,
it looks as if they are in for an extraordinary adventure.