Theresa is a book like a game. It has been written according to the size and format of book pages, confined by the grid structure of a puzzle. Its narrative is the sequence of a routine evening in a lady’s life. She recalls a rule for every action she performs, using the structure of language to get a grip on the order of the world around her. Theresa is inspired by the figure of Kaspar Hauser, who was deprived of language for 17 years of his youth and later on re-adapted to the world by gaining access to language again. His name became a metaphor for the despair of being disconnected from the ‘outside world’ and for language as a dubious remedy to this isolation.