#1 THE TOWER TREASURE
0448089017 _____ @ $6.99
#2 THE HOUSE ON THE CLIFF
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#3 THE SECRET OF THE OLD MILL
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#4 THE MISSING CHUMS
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#5 HUNTING FOR HIDDEN GOLD
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#6 THE SHORE ROAD MYSTERY
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#7 THE SECRET OF THE CAVES
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#8 THE MYSTERY OF CABIN ISLAND
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#9 THE GREAT AIRPORT MYSTERY
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#10 WHAT HAPPENED AT MIDNIGHT
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#11 WHILE THE CLOCK TICKED
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#12 FOOTPRINTS UNDER THE WINDOW
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#13 THE MARK ON THE DOOR
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#14 THE HIDDEN HARBOR MYSTERY
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#15 THE SINISTER SIGNPOST
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#16 A FIGURE IN HIDING
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#17 THE SECRET WARNING
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#18 THE TWISTED CLAW
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#19 THE DISAPPEARING FLOOR
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#20 THE MYSTERY OF THE FLYING EXPRESS
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#21 THE CLUE OF THE BROKEN BLADE
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#22 THE FLICKERING TORCH MYSTERY
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#23 THE MELTED COINS
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#24 THE SHORT-WAVE MYSTERY
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#25 THE SECRET PANEL
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#26 THE PHANTOM FREIGHTER
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#27 THE SECRET OF SKULL MOUNTAIN
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#28 THE SIGN OF THE CROOKED ARROW
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#29 THE SECRET OF THE LOST TUNNEL
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#30 THE WALKING SIREN MYSTERY
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#31 THE SECRET OF WILDCAT SWAMP
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