"There are many healing potions that require the blood of a close relative. We are keeping your sister safe in order to create those potions. The healer has already experimented on several potions with her blood. She can be used to create potions that can heal you or increase your power. Being your blood sister, she is going to be your medicine for the rest of her life," replied Ein without a sliver of sympathy.
Adrianna shuddered. Kayla had become the guinea pig for the wizard kingdom. Feeling depressed, Adrianna didn't wish to go any further.