Using the name of his protagonist as pen name and writing in first person perspective, von Michalewsky would pen approximately two books a year over the following decades to eventually complete a series of 31 novels. The series became the second best-selling German-language science fiction series of all time, eclipsed only by team effort Perry Rhodan. The books were translated into Danish, Dutch, French, Italian, Spanish and Chinese. A late attempt to revive the series in 1999 was limited to one novel, "Ambivalente Zone". This expanded universe series was cut short when von Michalewsky died at Grasberg shortly after Christmas 2000, leaving the second novel, "Negativer Sektor", unfinished.