Line of Duty AC-12 'Looking for H' Birthday Card, brought to you by Derry Nice Things. Inspired by the thrilling TV series, Line of Duty, this card is perfect for fans of the show. AC-12, the renowned anti-corruption unit, is on a mission to uncover the mysterious 'H'. Celebrate your loved one's special day with this unique and exciting card, featuring iconic imagery from the show. Crafted with care and attention to detail, this birthday card is sure to make a lasting impression. Get ready to join the investigation and surprise your loved one with this exclusive card from Derry Nice Things.