Amazon.com Book Description (ISBN 044100850X, Paperback)

Tethys-the world's first completely self-sufficient undersea research station. Within this oasis of technology are those who seek to unlock the mysteries of the unknown deep. Outside of the station is a presence which may be the greatest discovery of all.

First-Rate. (Denver Post)

highly atmospheric...Steele efficiently and effectively evokes the cold, dark and unrelenting alienness of the world deep beneath the sea. (Publishers Weekly)

Taut, suspenseful SF adventure. (Library Journal)

There aren't many people writing fiction grounded in realistic scientific explanation...Allen Steele is among the best. (St. Louis Post-Dispatch)

Steele is a journalist of the SF imagination...His reporting on the nuts and bolts of this almost-here will stick in the mind. (Locus)