Blood Ties by Heather Atkinson

The Queen of Glasgow, Toni McVay, is no ordinary crime boss.

For one thing, she likes to discipline disappointing employees by scooping out their eyeballs and keeping them as souvenirs. Jamie Gray and his gang the Blood Brothers are happy to do her dirty work in return for lessons in the ways of the local underworld, but are in no doubt that they need to keep Toni sweet to keep themselves safe.
Rival families The Gordons and The Thompsons are ready for a turf war, keen to take over the lucrative Gallowburn estate, and weaken Toni’s grip on the city. But can the old enemies really trust each other enough to join forces? And will their assumption that the Blood Brothers are the weak link in the McVay empire, prove to be their greatest mistake?
Meanwhile Jamie’s past refuses to stay hidden, and as his biggest secret looks set to be revealed with explosive consequences, Jamie faces the battle of his life. To keep his family safe, to keep his friends safe, to keep himself safe, and to keep the woman he loves alive.