The character in Martina Cole's book "Close" plays a crucial role within her family as a mediator and peacemaker. She consistently helps to resolve conflicts and reminds her loved ones of their bond as family, emphasizing the importance of unity and support in their lives. Her efforts are instrumental in preventing arguments and fostering a sense of togetherness among family members.

Despite their close relationships, the family has experienced significant fallouts over the years. Her consistent presence as the voice of reason highlights her vital position in maintaining harmony, as she continually reinforces the idea that they ultimately only have each other in this world. Through her actions, she embodies the resilience of familial ties and the importance of nurturing those connections, especially during challenging times.