#5 - The Disappearing Floor
Text by Franklin W. Dixon

Sampson Low / Collins / Armada Books: A, C, D, E / 2 Omnibus Editions

Sampson Low Hardback Edition  

The Disappearing Floor (Sampson Low)

+ ZOOM COVER

The Disappearing Floor (Sampson Low)

Red boards and spine.

Publisher: Sampson Low

First Printed: 1961 (June)

Cover Artist: Paul Laune
Frontispiece Artist: Paul Laune
Internal Illustrations: None

SBN: None

Story version: Original text

First Printing Attributes:
-- Lists 6 titles inside (up to Flying Express)
-- Frontispiece: same as 1940 US ed. (?)
-- Spine number: 19.
-- Blank endpapers.
-- Yellow spine
-- Retail price: 5/- (5 shillings).

Notes:
-- Next book called Mystery of the Flying Express ('The' is omitted).

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Collins Hardback Edition  

The Disappearing Floor (Collins)

+ ZOOM COVER

+ ZOOM ARTWORK

Publisher: Collins

First Printed: 1971

Cover Artist: Peter Archer
Frontispiece Artist: Roger Hall
Internal illustrator: Roger Hall

ISBN: 0-00-160505-4

Story version: Revised text

First Printing Attributes:
-- Blue/grey spine box with black text.
-- 12 titles listed on reverse cover.
-- Blue staining on page edges.
-- Gold price label: 35p.

Spine Art Description:
-- Diver attacks Joe

Notes:
-- The internal illustrations and frontispiece for this title can be viewed at the Series Book Art website.
-- Later printings possess a blue spine box, usually with white text.

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Armada Paperback Edition  

The Mystery of the Disappearing Floor (Format A)

+ ZOOM COVER

Publisher: Armada Books
Cover Layout: Format A

First Printed: 1974 (October)

Cover Artist: Peter Archer

ISBN: 0-00-690909-4

Notes:
-- First printing back cover prices are as follows:
0.30 (UK), $0.80 (NZ), $0.80 (AU), $1.25 (CAN).
-- Armada altered the title of this story slightly by adding: 'The Mystery of'.

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The Mystery of the Disappearing Floor (Format C)

+ ZOOM COVER

+ ZOOM ARTWORK

Publisher: Armada Books
Cover Layout: Format C

First Printed: 1985

Cover Artist: Unknown

ISBN: 0-00-692492-1

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The Mystery of the Disappearing Floor (Format D)

+ ZOOM COVER

+ ZOOM ARTWORK

Publisher: Armada Books
Cover Layout: Format D

First Printed: 1988

Cover Artist: Unknown

ISBN: 0-00-692492-1

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The Disappearing Floor (Format E)

+ ZOOM COVER

+ ZOOM ARTWORK

Publisher: Armada Books
Cover Layout: Format E

First Printed: 1992

Cover Artist: David Browne

ISBN: 0-00-692492-1

Notes:
-- David Browne plays the part of injured pilot Jack Wayne in this illustration. (Source: the interview with British artist David Browne, conducted by Bob Finnan in 2003).

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Armada Paperback Omnibus Editions

Armada 3-in-1 Omnibus (Format B)

Publisher: Armada Books

Cover Layout: Format B

First Printed: 1983

Featured stories:
#1 - The Mystery of the Aztec Warrior
#5 - The Mystery of the Disappearing Floor
#12 - The Wailing Siren Mystery

Cover Artist: Unknown

ISBN: 0-00-692244-9

Notes:
-- First printing back cover prices are as follows:
1.95 (UK), $6.95 (NZ), $ (AU), Not For Sale In Canada.

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Armada 2-in-1 Omnibus (Format E)

+ ZOOM COVER

Publisher: Armada Books

Cover Layout: Format E

First Printed: 1994

Featured stories:
#5 - The Mystery of the Disappearing Floor
#6 - The Mystery of the Desert Giant

Cover Artist: David Browne

ISBN: 0-00-694505-8

Notes:
-- First printing back cover prices are as follows:
3.50 (UK), $12.95 inc. GST (NZ)

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 UK Collins Order

 US Order

Harold Hill only titles:

HH 2. House On The Cliff
HH 14. Hidden Harbour Mystery

Collins titles:

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