Poison from a Dead Sun — Michael Hemmingson

Since childhood, Noel has had a psychic connection to the nuclear fish monster, Goldgotha, whom he can summon by thought to defeat nefarious aliens and their allied creatures. Then The Consortium invades earth with the intent of enslaving mankind. Nolan calls upon his irradiated giant goldfish once again to save the day--but is he actually being deceived about the truth? Entertaining SF that stretches the imagination with new twists to classic themes of wonder and giant monsters!