Konrad Tomasz Lewandowski (born 1 April 1966 in Warsaw) (a.k.a. ''Przewodas'') is a fantasy and science fiction writer and journalist, doctor of philosophy, most known for two of his series: a science/political fiction series of adventures of a tabloid journalist Radosław Tomaszewski, and a fantasy series about a werecat Ksin. He wrote four crime fiction novels set in Second Polish Republic featuring chief inspector Jerzy Drwęcki.