The waiting is almost over, as book 6: Shadows of Olympus will soon be available on Amazon. I'm almost done with the cover (it might change slightly but this is near final).
The book is being copy edited at the moment and will soon go to proofread. It should be ready for release in 2, maximum 3 weeks. Not sure I'll keep the subtitle.
I've already started work on book 7 and I'm going to do everything I can to write that one faster and I'm shooting for February of next year for the release date.
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Your friendly neighborhood writer,