 Jaan Tatikas, one of the protagonists of the first part, is an incompetent and uneducated aspiring inventor.One of the most famous failed inventions of Tatikas was a man-powered device supposedly capable of moving over land and water and flying in air (and interplanetary space).Tatikas named the device "Kallewipoegk", a horribly misspelt but recognisable reference to Kalevipoeg.