Lina Vilkas is the main character in the novel "Between Shades of Gray" by Ruta Sepetys. Set during World War II, she is a 15-year-old Lithuanian girl who is forcibly taken from her home by Soviet soldiers. The story follows her journey through harsh conditions in labor camps, highlighting her resilience and hope. Throughout her ordeal, Lina uses her artistic talent to document her experiences and the suffering of her family and fellow prisoners. Her drawings serve as a powerful reminder of the human spirit's ability to endure even in the darkest times.