"Magic Tides (Kate Daniels: Wilmington Years)" by Ilona Andrews

"Magic Tides (Kate Daniels: Wilmington Years)" by Ilona Andrews
 https://www.amazon.com/Magic-Tides-Kate-Daniels-Wilmington/dp/1641972521/
Book number one of a two book paranormal romance dark fantasy series. There are predecessor books, short stories, and successive books to the series also that is over twenty books long.  I read the well printed and well bound POD (print on demand) trade paperback published by the Nancy Yost Literary Agency in 2023 that I bought new on Amazon recently.  Note that “Ilona Andrews” is the pseudonym for a husband and wife writing team.  I have purchased the successor book for later reading.
Kate Daniels is a mercenary in Wilmington, North Carolina and married to the former Beast Lord with an eight year old half beast half magic son. As the former owner of the city of Atlanta, Georgia, she is in hiding from her fame and just wants to live a quiet life with her family.  All of her life, she has been running from her father, a 5,000+ year old all powerful mage currently known as Roland.  In the Bible, he is known by another name.  Now her father visits with his grandson constantly and trying to installing his family values, to rule the world ruthlessly.
Kate Daniels's universe sucks.  Fifty years ago, the tech world crashed over the entire Earth and was replaced by the magic world in the form of a magic flare.  Guns don't work, cars don't work, electricity and phones do not work.  But magic works.  Good magic and bad magic.  After a week, the tech world came back to a drastically changed world.  And radically fewer humans.  And the magic world came back after a while.  And the tech world came back after that.  And so on and so forth.  Each world can last a few weeks or a few hours.
I liked everything about the story.  I especially liked the very clear distinction between the tech time and the magic time.  I had never thought about it that way.  The series may be inspired by "Ariel" by Steven Boyett and "Dies The Fire" by S. M. Stirling except those never interchange the tech time and the magic time, they just transitioned to the magic time.
The authors have a website at:
    https://www.ilona-andrews.com
My rating: 5 out of 5 stars
Amazon rating: 4.8 out of 5 stars (9,982 reviews)
Lynn