Crabwalk, published in Germany in 2002 as Im Krebsgang, is a novel by Danzig-born German author Günter Grass. As in earlier works, Grass concerns himself with the effects of the past on the present; he interweaves various strands and combines fact and fiction. While the murder of Wilhelm Gustloff by David Frankfurter and the sinking of the ship the Wilhelm Gustloff are real events, the fictional members of the Pokriefke family bring these events into our own time.