I Know What You Did Last Wednesday - Diamond Brothers Book 6 (Unabridged‪)‬

It's not easy being the younger brother of the world's worst private detective – even when you're on holiday!

When the Diamond Brothers receive an invitation to a school reunion on a remote Scottish island, things seem to be looking up. But Nick’s got a bad feeling, and it’s not indigestion. And when he meets their fellow guests, the feeling only gets worse – especially when they start dying in ever more bizarre ways!