Blood Ties. Book 4. Fiery Heart

Sydney Sage has to hide too much from her beloved younger sister Zoe, who now works alongside her. Communication with witches. Personal life. Magical experiments. Zoe is wholeheartedly devoted to the mission of the alchemists and their domineering father. If she learns any of her sister's secrets, she will surely turn away from her. Does Sydney have a chance to show Zoe that life is not limited to blind servitude?
Meanwhile, Adrian is creating real wonders with spirit magic — perhaps this will one day help obtain protection against strigoi. But the price for what has been achieved is becoming more horrifying, so he must decide if his amazing abilities are worth the madness that follows? 

This is a re-release of the fourth book in the series «Blood Ties», which expands the popular universe of «Vampire Academy».

Blood Ties. Book 1. Princess of Blood

Blood Ties. Book 2. Golden Lily

Blood Ties. Book 3. Charms of Indigo

Blood Ties. Book 4. Fiery Heart

Blood Ties. Book 5. Silver Shadows

Blood Ties. Book 6. Ruby Ring