7 books in series

Crabs

Crabs is a 7-book series with 7 released primary works first released in 1976 with contributions by Guy N. Smith.

Night of the Crabs
Killer Crabs
The Origin of the Crabs
Cover 3

Crabs On The Rampage

Crabs' Moon
Crabs: The Human Sacrifice
Killer Crabs: The Return