ALFRED HITCHCOCK AND THE THREE INVESTIGATORS: THE MYSTERY  OF THE TALKING SKULL BY ROBERT ARTHUR AND ILLUSTRATED BY HARRY KANE AND PUBLISHED BY RANDOM HOUSE (COPYRIGHTED 1969) IN 1972 IN THE PICTURE COVER BINDING AND BEING #11 IN THE THREE INVESTIGATORS SERIES; BOOK LIST TO #18 ON THE REAR COVER AND  LIST TO #12  INSIDE.   BOOK IS IN  GOOD TO VERY GOOD CONDITION WITH SPINE ENDS AND CORNERS RUBBED, NO WRITING INSIDE.   POSTAGE $7.50 IN THE UNITED STATES AND BY ARRANGEMENT OVERSEAS.