Thief of Time by Terry Pratchett is currently $1.99 at amazon.com
https://www.amazon.com/Thief-Time-Di.../dp/B000W916WK
Everybody wants more time, which is why on Discworld only the experts can manage it -- the venerable Monks of History who store it and pump it from where it's wasted, like underwater (how much time does a codfish really need?), to places like cities, where busy denizens lament, "Oh where does the time go?"
While everyone always talks about slowing down, one young horologist is about to do the unthinkable. He's going to stop. Well, stop time that is, by building the world's first truly accurate clock. Which means esteemed History Monk Lu-Tze and his apprentice Lobsang Ludd have to put on some speed to stop the timepiece before it starts. For if the Perfect Clock starts ticking, Time -- as we know it -- will end. And then the trouble will really begin...
and
Magic Bleeds by Ilona Andrews (Kate Daniels #4) is also $1.99 in the US
https://www.amazon.com/Magic-Bleeds-.../dp/B003NX7NHO
https://www.kobo.com/us/en/ebook/magic-bleeds
Kate Daniels works for the Order of the Knights of Merciful Aid, officially as a liaison with the mercenary guild. Unofficially, she cleans up the paranormal problems no one else wants to handle—especially if they involve Atlanta’s shapeshifting community.
When she’s called in to investigate a fight at the Steel Horse, a bar midway between the territories of the shapeshifters and the necromancers, Kate quickly discovers there’s a new player in town. One who’s been around for thousands of years—and rode to war at the side of Kate’s father.
This foe may be too much even for Kate and Curran, the Lord of the Beasts, to handle. Because this time, Kate will be taking on family...