"You're not invisible. You're invaluable."When Kinley Carmichael looks in the mirror, she doesn't see her blonde-haired, blue-eyed, size 4 twin sister. She sees her dark-haired, brown-eyed, size 12 self. Kinley and her twin sister Addison are excited to start their second summer as counselors at The Camp at Lake Hollis. All Kinley wants is to earn enough money to meet up with her mother so they travel the world as professional photographers. All Addison...