Mortals Meet Magicians (and Demigods)

Mortals Meet Magicians (and demigods)
A Kane Chronicles / HoO Meet Mortals Fanfic
In this book, mortals will meet Egyptian magicians and Greek / Roman demigods.
Hmm... What will happen? Would the magicians, in turn, meet the demigods too?
Read to find out.
Note: this will be one story with views from different characters and some prequels (if a few chapters count as a prequel) and things happening at different places but around the same time.
Disclaimer: All characters belong to Rick Riordan.