Vengeful Reign by Carina Blake

Chicago’s MacNamara brothers have a score to settle and revenge in their hearts as they lay waste to their enemies and claim the women that land in their arms.

When the youngest MacNamara disappears while in their father’s care, war and vengeance stir in their veins, driving the brothers to hunt and destroy those involved. Finding their innocent little brother before it’s too late was of the utmost priority.
Jack MacNamara takes his position as the head of the family extremely seriously, including the love for his little brother. Leading the search for John sends the crime boss into uncharted territory and into the path of a petite teacher who needs to be taught a lesson or two when it comes to crossing the head of a crime family.