From 1949 to 1953 , Clement 's first three novels were two- , three- , and four-part Astounding serials under Campbell : Needle ( Doubleday , 1950 ) , Iceworld ( Gnome Press , 1953 ) , and Mission of Gravity ( 1954 ) , his best-known novel , published by Doubleday 's Science Fiction Book Club ( established 1953 ) .