Unterricht und Didaktik: Moderne Sprachen: Fremdsprachenerwerb

The Three Investigators and the Mystery of the Vanishing Treasure

The Three Investigators and the Mystery of the Laughing Shadow

The Three Investigators and the Secret of the Crooked Cat

The Three Investigators and the Mystery of the Stuttering Parrot

The Three Investigators and the Mystery of the Coughing Dragon

The Three Investigators and the Secret of Terror Castle

The Three Investigators and The Mystery of the Whispering Mummy

The Three Investigators and the Mystery of the Fiery Eye

The Three Investigators and the Mystery of the Screaming Clock

The Three Investigators and the Mystery of the Talking Skull