I have the following books for sale.

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US Hardcovers with dust jacket

Night Probe!                 1981, Large print edition, Former library book with usual markings

Treasure                       1988, 1st edition, full number line, not price clipped

Shockwave                   1996, Book Club Edition

Floodtide                       1997, 1st edition, full number line, not price clipped

The Sea Hunters         1996, Wheeler Large print edition

The Sea Hunters II      2002, 1st edition, full number line, not price clipped

 Black Wind                   2004, Large print edition

Special edition Sagebrush bound

Treasure

Deep Six

UK Hardcovers with dust jacket

Vixen 03   1978, Book Club Associates

Cyclops    1986, 1st edition, not price clipped, former library copy

Sahara     1992, Book Club Associates

Foreign Hardcovers

US Pockets

Iceberg                       1981

Iceberg                       1986

Iceberg                       2000  adapted for young readers

Iceberg                       2004

Vixen 03                     1979

Night Probe!              1984

Cyclops                      1986

Cyclops                      1986   special export edition

Treasure                    1988

Sahara                        2005

UK Pockets

Vixen 03      1984

Sahara        1993

Fire Ice         2002

Foreign pockets

Das Alexandria-Komplott                       German                 10/91

Cyclops                                                      Italian                     2002