Argentina | Australia | Brazil | Britain | Czech Republic | Denmark | Estonia | Finland | France | Germany | Iceland | Indonesia | Israel | Italy | Japan Lithuania | Malaysia | Mexico | Netherlands | Norway | Poland | Portugal | Romania | Russia | South Africa | Spain | Sri Lanka | Sweden | Turkey | Other . British Editions - Harold Hill . British Original Series #1 - Publisher: Harold Hill - (Yellow Spine Dust Jacket) American Volumes: 1-14; 26, 28, 29. Illustrator: Gillies; Tandy; Varty (original British art). Note: Vol. 29 was issued in both Gillies and Varty art. Thanks to Doug Yarborough for the scan of Footprints. .  #1 - Lost Tunnel #3 - Phantom Freighter #4 - House on the Cliff #5 - Tower Treasure #6 - Old Mill #7 - Missing Chums #8 - Hidden  Gold #9 - Caves     #11 - Airport #12 - Cabin Island #13 - Midnight #14 - Clock Ticked #15 - Footprints/Window #16 - Mark on the Door #17 - Hidden Harbor   .  British # American # Date Title 1 29 1950 The Secret Of The Lost Tunnel 2 28 1951 The Sign Of The Crooked Arrow 3 26 1951 The Phantom Freighter 4 2 1951 The House On The Cliff 5 1 1951 The Tower Treasure 6 3 1951 The Secret of The Old Mill 7 4 1951 The Missing Chums 8 5 1951 Hunting for Hidden Gold 9 7 1953 The Secret Of The Caves 10 6 1953 The Shore Road Mystery 11 9 1953 The Great Airport Mystery 12 8 1953 The Mystery Of Cabin Island 13 10 1955 What Happened At Midnight 14 11 1955 While The Clock Ticked 15 12 1957 Footprints Under The Window 16 13 1957 The Mark On The Door 17 14 1957 The Hidden Harbour Mystery Copyright © 2003/04 Austin Johnson - All rights reserved.