Present article deals with literary-historical phenomenon of "Zielony Balonik" theatre which
was the part of "Mloda Polska" movement, and with creative work of Tadeusz Zelenski-Boy
within it. The mode of avant-guard (post-romantic) irony is seen as the very essence of "Zielony
Balonik" performance; the analysis of basic motives of the irony in Tadeusz Zelenski's book
"Slowka" is carried out.
In the article author turns to interpretation of avant-guard Ukrainian novel of the 20-ies
"Podorozh uchenoho doktora Leonardo..." ("The travel of doctor Leonardo, the scientist...") by
Mike Yohansen. The most attention is paid to novelist's play with the reader and deconstruction
by Mike Yohansen of the tradition form of a novel.