A thrilling, brand-new adventure story - with an ecological edge.

Dad looked at us solemnly. "We've been sent here by a very important international organization to engage in undercover surveillance." Tommo and I sat up.

Had we heard right? "You mean you're spies?" gasped Thomas; When Mr and Mrs Pickford announce that they are moving the family to a lighthouse on a deserted island, Polly and her brother Tommo, think their parents have "finally flipped".

Until they learn the truth: their mum and dad are spies, working to expose the illegal smuggling of endangered species.

The risks are high, but it is not until a suspicious stranger is shipwrecked on their island, and Polly and Tommo make a horrifying discovery, that they realize just how much danger the family is in...