Season 6, Episode 2
The dynamics between two siblings who are close in age can be wonderful.
But such natural developments as the arrival of puberty and the first steps towards independence from the family can break the bond between the elder and a younger child. A sense of betrayal of that bond can lead to issues which last for decades.
In her interview with Costas Halavrezos, novelist Andrea Gunraj, author of "The Lost Sister", explains how she put together two women of different ages (13 and 60) and backgrounds to gain insight into how betrayals had changed their lives.