Hmmm... it certainly sounds interesting so far. I can't wait to read more of this! I'm glad there's someone else here who at least checks over their work before posting it.
Keep up the awesome work! :) (:
Tarah xXx

This is a really cool story. The characters are quickly defined and reader can easily envision them. Please consider adding a bit more to show the internal struggle that Hades and Persephone have with giving up their daughter. I know that it would take more than a prophecy to convince me to give up one of my daughters. You have an opportunity here to draw your readers in deeply.

Also, I am still confused by the early exchange between the Gods. It might help if you set the scene there so the reader knows what is happening before they all start talking.