Quick review for a quick read. I had this as a galley quite a few years back and I've finally been able to pick it back up after the longest time. So, I definitely know about the Witchblade series, and I know a little bit about Red Sonja (created originally by Robert E. Howard - the creator of Conan the Barbarian, and I know of her from the comic storylines she was introduced in Conan.)
This story has parallel storylines which jump back and forth in time, so I'll admit I was fairly confused before I adjusted to the scheme of events. Red Sonja's (past character) on a mission to kill a dangerous demon, while Sara Pezzini (Witchblade wielder in the present time) is called away from her family to investigate a brutal case. The link between their times is the Demon's push to manipulate the Witchblade and take over the world. The Demon is able to show up during Sara's time and wreak all kinds of havoc, from harming her Detective partner to stealing her child for a prophecy. So it's a dual story showing how both ladies from their distinct times end up using the Witchblade to defeat the demon and restore order.
I liked the quality of the artwork as well as the overarching storyline - it was decent for a 30 minute read and kept me on my toes as far as the fates of the characters were concerned. Both Sara and Red Sonja were strongly asserted characters. I wish there would've been a better lead in for the story established, but I was able to follow it well enough once it hit the ground running.
Overall score: 3/5 stars.
Note: I received this as an ARC from NetGalley, from the publisher Dynamite Entertainment.