Cassandra Palmer Series by Karen Chance

Touch the Dark

"Like any sensible girl, Cassie tries to avoid vampires. But when the bloodsucking Mafioso she escaped three years ago finds Cassie again with revenge in mind, she's forced to turn to the vampire Senate for protection.The undead senators won't help her for nothing, and Cassie finds herself working with one of their most powerful members, a dangerously seductive master vampire- and the price he demands may be more than Cassie is willing to pay."
(From Amazon.com)

Paperback Info: ISBN 0451460936, Roc, 2005

Claimed by Shadow

"Clairvoyant Cassie Plamer has inherited new magical powers-including the ability to travel through time. But it's a whole lot of responsibility she'd rather not have. Now she's the most popular girl in town, as an assortment of vamps, fey, and mages try to convince, force, or seduce her-and her magic-over to their side. But one particular master vampire didn't ask what Cassie wanted before putting a claim on her. He had a spell cast that binds her to him, and now she doesn't know if what she feels for him is real-or imagined..." (From Amazon.com)

Paperback Info: ISBN 0451461525, Roc, 2007

Embrace the Night

"Recently named the world's chief clairvoyant, Cassandra Palmer still has a thorn in her side. As long as Cassie and a certain master vampire--the sizzling-hot Mircea--are magically bound to each other, her life will never be her own...

The spell that binds them can only be broken with an incantation found in the Codex Merlini, an ancient grimoire. The Codex's location has been lost in the present day, so Cassie will have to seek it out in the only place it can still be found--the past.

But Cassie soon realizes the Codex has been lost for a reason. The book is rumored to contain some seriously dangerous spells, and retrieving it may help Cassie to deal with Mircea, but it could also endanger the world..." (From Amazon.com)

Paperback Info: ISBN 0451461991, Roc, 2008

Curse the Dawn

"Cassie Palmer may be the world’s chief clairvoyant, but that doesn’t mean people have stopped trying to kill her. And now, the self-styled god Apollo, the source of Cassie’s power, is on the warpath—leaving her no choice but to face down her creator once and for all." (From Amazon.com)

Paperback Info: ISBN 0451412702, Roc, 2009

Hunt the Moon

"Cassandra Palmer recently defeated a god, which you'd think would buy a girl a little time off. But it doesn't work that way when your job description is Pythia-the world's chief clairvoyant. Cassie is busier than ever, trying to learn about her power, preparing for her upcoming coronation, and figuring out her relationship with the enigmatic sexy master vampire, Mircea. 

But someone doesn't want Cassie to become Pythia, and is willing to go to any lengths to make sure the coronation ceremony never happens- including attacking her mother before Cassie is even born." (From Amazon.com)

Paperback Info: ISBN 0451413075, Signet Select, June 2011

Website: www.karenchance.com