“We are the light against the darkness. And now we’ve failed in our duty. Clarence is gone,” she said bitterly. “Escaped. He murdered an orderly. There’s no doubt it’s the same creature that ran loose in New York. None at all.”

Kat Ross, you have created a fan for life! I absolutely loved this, for many of the same reasons I loved The Daemoniac (the first book in the series) last year.

The Thirteenth Gate is:

Well paced. I can't say this enough...Kat Ross just gets pacing.
Full of familiar and new characters who you'll want to get to know.
A great mix of historical, paranormal, mystery, and romance!
Atmospheric - again, the setting plays a big role and is a character unto itself.
Standalone enough to read it alone but connected enough to make you want to go back and forward in the series (more on that in a bit).
“So, The Serpentine. It’s by far the closest one.” Sidgwick swallowed. “I went boating in Hyde Park just a few months ago. Are you saying—?” “That there’s a portal to the Underworld beneath the lake? Yes, but only in parts.”

The Thirteenth Gate is the second in the Dominion series but also connects with Kat Ross' previous series, The Fourth Element Series. I've read The Daemoniac but have not yet dove into The Fourth Element Series (but did I pick up the first one as soon as I finished this one? You bet.). Readers who have picked up any of the previous books will welcome revisiting the world and characters and, for new readers, you get enough background info that you won't be lost. The worldbuilding and setting up of the story never feels overstretched. Pieces of the story take place in New York and other times the setting is London, both richly painted yet the world has been updated to allow the paranormal elements to flow.

Fans of Sherlock + Supernatural will feel at home with the paranormal and mystery elements. I felt a sense of urgency as the two parties searched for the Thirteenth Gate, which will surely bring destruction to humankind. Nothing and no one is safe from the demon underbelly.

I can't wait to see what the gang is up to in the next book.