The Arsonists by Max Frisch.

This dark comedy is set in a town regularly attacked by arsonists. Disguised as door-to-door salesmen, they talk their way into people's homes and settle down in the attic, where they set about planning the destruction of the house. The first sketch was written in 1948 in response to the Communist takeover in Prague, but the play is often seen as a metaphor for Nazism and fascism.

Book is in German.

Found items are final sale and as is.