I don't have any red gloves...
White Cat is a tough act to follow and I was worried that Red Glove wouldn't live up to its promises, especially as I began reading it immediately after.
In Red Glove Cassel becomes less isolated and more involved with the other characters' lives. He has another mystery that he needs to solve - to get federal agents off his back, but the story is also about his developing friendships with ? and Daneca, the changes in his family relationships after the revelations of White Cat, and of course his relationship with Lila, cursed to love him. He is also being courted by Lila's father, who wants to use his abilities for his own criminal ends.
I felt like the mystery was a little less compelling this time, even though I guessed parts of the reveal in White Cat and didn't guess what had happened in Red Glove. However, the new worldbuilding details that were revealed along with the developments in Cassel's relationships more than made up for it. I loved finding out about the politics of the world, about the campaigns to give curse workers more freedom and those to persecute them. I really want to know more about Daneca's mother.
It's difficult to go into much detail without bringing in spoilers, so I'll end by saying that if you enjoyed White Cat, you will very probably also enjoy Red Glove, so what are you waiting for?