Sailors get onto the footropes from the ratlines up the mast. There, he organized one of the ratlines used by collaborators and Nazi fugitives. Futtock shrouds may or may not have ratlines. While his official status was minor, Hudal clearly played a role in the ratlines. In Buenos Aires he helped develop ratlines for other Nazis seeking to flee from Europe. However, up to 10,000 Nazi war criminals eventually fled Europe using ratlines such as ODESSA. "Ratlines" was published in January 2013 in the US by Soho Crime. Ratlines are climbing aids in rigging of sailing vessels similar to a rope ladder. Other Nazis used ratlines to escape post-war Europe to places such as South America.