Kajtek i Koko - profesor Kosmosik

Janusz Christa's Kajtek i Koko - profesor Kosmosik, published by Egmont Polska in 2006, is a single-issue comic that continues the beloved Polish duo's adventures. In this standalone story, Christa both writes and draws the pair as they encounter the eccentric Professor Kosmosik, blending the series' signature humor with a touch of science fiction. Though brief, it stands as a late-career addition to Christa's iconic run, offering fans a compact, charming glimpse of his enduring characters.