my harmful secret

In 2002 the great god Cthulhu awakens and impregnates a woman then erases her memory changes the DNA of the fetus and creates a husband for the woman 14 years later the great god Cthulhu awakens again and it's up to the human son of Cthulhu to defeat him. oh I forgot to tell you that the child can turn into a cthulhian or basically a 7 ft Cthulhu with wings and a tail and dinosaur like legs.