Ernie is an immortal dealer. She got her cards in the first book.
The book starts with Ernie trying to return a Russian soldier back to Russia. Then the Forger gives her a job. The Forger is someone who used to be a dealer, but now tells them what to do and is more powerful than any of them. On one hand, Virginia sends Ernie to another dimension, but on the other hand this is where Virginia likes to send people, kind of like Siberia. So, it turns out that Ernie's dad is there somewhere.
She hasn't seen Gabe, the hero, in two months. Gabe is pretty angsty and is sending out really mixed signals that hurts Ernie a lot. He has announced that he's thinking of giving up his cards. This means death and Ernie is terrified that he will do it. To explain his actions to Ernie, one of the other dealers comments about Gabe: "But if he's not sure whether he wants to stick around or not, I'm thinking it's probably hard for him to be around her."
This is as good as the first book and I recommend it.