From The New York Times bestselling author of Virtual Mode. An alien from an alternate reality recruits five people on an exciting mission to save the Earth from a meteor strike. The alien's advanced technology allows the intrepid humans to breathe underwater as they embark on a wondrous journey through the ocean.
Used availability for Piers Anthony's Mer-Cycle
October 1991 : USA Hardback
January 1993 : UK Paperback
August 1992 : USA Mass Market Paperback
July 2017 : Canada, UK Kindle edition