"Are you alright?" Dylan asked.
Sienna felt like she had exhausted most of her energy. She was breathing hard and noticed the red stain on the grey skirt of her dress.
She touched her nose and found warm blood on her fingers.
"You shouldn't push yourself," he said.
She looked at him with disappointment etched on her face. She was halfway through casting the curse, but before her blood could reach Dylan's heart, her body weakened and she could no longer continue. If she had forced it, there was no doubt she would have died.
Just as she had read in the books, the blood-purifying curse was dangerous to the caster, and many things could go wrong, especially if the caster was not a highly skilled witch. She hadn't been practicing, and it was her first time trying such a difficult curse, but she still bet on her luck.
"I'm so sorry…" she apologized, her eyes welling up with tears.