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Robby Hoenig adventure

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The Robby Hoenig adventure book series by Gordon R. Dickson includes books Secret under the Sea, Secret Under Antarctica, and Secrets of the Deep. See the complete Robby Hoenig adventure series book list in order, box sets or omnibus editions, and companion titles.
3 Books
#1
Secret under the Sea - Book #1 of the Robby Hoenig adventure

Secret under the Sea

Gordon R. Dickson
From $9.59
#2
Secret Under Antarctica - Book #2 of the Robby Hoenig adventure

Secret Under Antarctica

Gordon R. Dickson
From $49.69
Secrets of the Deep - Book of the Robby Hoenig adventure

Secrets of the Deep

Gordon R. Dickson
Out of Stock
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