Dr. Michael Cross, Director of the decidedly minor-league New York Aquarium, has been asked for help by his old professional rival. It turns out to be a bigger fight than either could imagine, nothing less than the battle between light and darkness at its most elemental level. There had been mass extinctions in the past, and now they were looking into the teeth of another. If mankind is to have any chance, Michael must enlist the help of a famed French oceanographer ... and leave his daughter alone in a New York City that is going mad.
Used availability for Matthew J Costello's Wurm
March 1991 : USA Paperback
June 2012 : USA, Canada, UK Kindle edition