Boston Witches Series by Jessica Gibson

Magic flows through Jillian Proctor's veins as surely as blood, but so far her life outside Boston has been peaceful. William Morgan blows into Jilly's life like a hurricane, unleashing her magic and sending her out of control. Unknowingly, William brings an enemy who only wants to posses the power of the witch. Jilly must learn to harness her magic before she loses it - and everything in her life is destroyed.

After the events of Mark of the Witch, Jilly at last begins to breathe easier though her powers are still growing. But can she harness them in time to confront a new chain of events that threatens to change everything?Caroline has finally accepted her life as a witch, but when a stranger comes into her life she's forced to question her family loyalty.The sisters are thrown together to protect a young girl from the enemy determined to hunt her down. Can they save her -- and themselves?