Tenby Kate Irwin was born with a heart defect. Her mom passed away from heart complications shortly after she was born, and was left with no memory of her mother, but only a locket with a picture of her and her father, Ashton Irwin. Ashton is a doctor, and along with his friends, they all share custody of his 14 year old daughter. Things are starting to get hectic in Tenby's life with her starting high school soon, and having to undergo her 5th heart operation. Read this book to find out how Tenby gets on.