Box Unabomber (alternative title Praehidno) is a Bulgarian theatre play written by Zdrava Kamenova and Gergana Dimitrova.
Played as a parallel against the destructive progression of technology is the journey of the now extinct western long-beaked echidna and its attempt to find it a mate like itself to prevent disappearing forever.
This is a play about the rapidly developing technologies, about self-satisfied scientists, about biological species on the edge of extinction, about a disintegrating family, about an environmental activist who tries to change the world but fails and remains just a common terrorist.
[3] There are several intertangled plotlines but all of them are united by the attempts of the characters to be heard in a world that grows increasingly alienated from the simple things.
The characters have no faces, they are voices in the dark, they have no names, as if they are all lost in time and space without any chance of getting in touch with each other.