Blood Promise (Vampire Academy #4) by Richelle Mead

The recent attack on St. Vladimir's Academy devastated the entire Moroi world. Many are dead. And, for the few victims carried off by Strigoi, their fates are even worse. A rare tattoo now adorns Rose's neck, a mark that says she's killed far too many Strigoi to count. But only one victim matters... Dimitri Belikov. Rose must now choose one of two very different paths: honoring her life's vow to protect Lissa - her best friend and the last surviving Dragomir princess - or, dropping out of the Academy to strike out on her own and hunt down the man she loves. She'll have to go to the ends of the earth to find Dimitri and keep the promise he begged her to make. But the question is, when the time comes, will he want to be saved? 

Now, with everything at stake - and worlds away from St. Vladimir's and her unguarded, vulnerable, and newly rebellious best friend - can Rose find the strength to destroy Dimitri? Or, will she sacrifice herself for a chance at eternal love?

“If your eyes weren't open, you wouldn't know the difference between dreaming and waking.” 

“I'm like a fine wine. I get better with age. The best is yet to come.”

“Life’s like that. As we grow and change, some things we’ve experience before take on new meaning. It’ll happen for the rest of your life.”

“Don't beat yourself up over what you could have or should have done. The past is gone. Move on to the future.”

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