Call of the Nightingale

Many years ago, the gods ruled over the land and were worshipped by all. But as man grew more advanced, they soon faded into myth, and left the realm of man alone, only watching from behind the seems. But, as we all know, Zeus could not, because as humans grew and developed, so did their beauty.
A mortal woman beguiled Zeus in the modern age with her beauty, so much so that he could not resist, Birthing the first demigod in ages. But with this new birth, re-awakens a grand threat.