Since Listen Taylor's dad started dating a Zing, her life has gone from unusual to downright weird.

The Zing family live in a world of unexplained projects, coded conversations and start-of-the-art surveillance equipment - all designed to protect the Zing family secret, a secret so huge it draws them all to the garden shed every Friday night to discuss it. And Listen isn't invited. But Listen herself has things she'd rather keep hidden, including an unconventional spell book that might just be the answer to her problems . . .