Our Little Secrets

The island holds a secret, in fact, millions of secrets. Harriet holds only one but it's the heaviest secret in the world.
Her best friend Olly shows her The Seal- an inclusive club for secret-keepers only. Whisper your secret into the bag and the more bags you have the more distinguished secret-keeper you are. The Seal is a dark, mysterious place where people live two lives- reality and the life of a secret-keeper. She meets the strange twins- quiet Emily and outrageous Tristan.
But everything is not has it first appears- even Olly is deceiving her.
Could the truth help her sort out the mess that is her secret? But will Harriet ever find out the truth about a place that's full of lies?