Story where the main character loses 3 fingers to a flask of nitrogen

Question

I remember that the bad guy had resurrected some kind of zombie and had pinned one of the main characters in a basement then stuck the boy's hand in a flask of liquid nitrogen. All of his fingers except the index and thumb were frozen off. Then one of the girls comes in and throws a ton of beads on the floor and the zombie starts obsessively counting them, letting the two escape.

He goes back to a pawn shop from earlier in the book and buys this steampunk prosthetic glove thing with removable fingers that he then wears.

I remember the front cover was him with his metal hand and steampunk goggles.

There was also a bit where he gets a candle made from the hand of a murderer. A woman gave it to him because she read his tarot cards and they seemed bad.

Edit: more information, I'm 70% sure the cover had a pale blue background. Also it was a children's/teens book with a definite steampunk theme all the way through.

Also the city it's set in uses a weird way to measure time. They have various strange words to describe how far though a day they are.

Edit 2: of the two girls one was wealthy and very bookish. She's the one that tips out the bag of beads to distract the zombie, she read it in a book. The other one is a bit younger, she's a bit wild and a bit of a thief. At the end of the book girl1 works out that the zombie is girl2s brother. Allowing girl2 to control it and force it to kill itself.

Answer 1

If I had to take a guess at this time, it would be Doctor Adder by K.W. Jeter based solely on your description of the cover. I read the book ages ago and have not looked at it again since.

Set in a future where the United States has largely broken down into reluctantly cooperating enclaves run by a wide variety of strongmen and warlords, with a veneer of government control that seems largely interested in controlling technology. Dr. Adder is an artist-surgeon, who modifies sexual organs of his patients to satisfy the weirdest of perversion; he is clearly depicted as a partly criminal, partly countercultural figure in a future Los Angeles.

This pic shows glowing eyes, not "steaming goggles"