Historical conspiracy theories – the Muhlenberg legend, spectral time hypothesis, the Protocols of the Elders of Zion – have occupied the minds of a large group of scholars and lovers of the past for centuries, being also one of the most controversial and, at the same time, interesting elements of contemporary culture. For Hubert Gromny and Xavery Wolski, they became an inspiration to create the installation Crystal skulls are modern fakes? Adventure Movie. Starting from the eclectic nature of conspiracy theories, drawing randomly from historical science, pop culture, and futurology, the creators tested their typical determinants and created a new conspiracy narrative. It questions the official theories referring to the origins of the Slavic peoples. In this attempt to mediate conspiracy theories, the artists created the character of Janusz “Johnny” Bzibziak PhD – a Polish Indiana Jones – associated with the Archaeological Museum of Kraków. The protagonist is a specialist in the field of research on nomadic peoples and a proponent of a theory postulating links between the ancestors of Slavs, Cimmerians, and Scythians.