The Svarozhich Project was located in tunnels underneath Prague. It attempted to solve Earth's energy problems by releasing magma into the tunnels. However, the tunnelling disturbed Szlth'TOK's species, who began killing the humans involved in the project. Director Abloran and Szlth'TOK, with the help of the Fifth Doctor, negotiated an end to the hostilities and ended the project. (PROSE: Men of the Earth)