Katie and Dan Chatham start off having an ordinary bad day, and end up having one very good, very crazy week. What should be the first day back at school turns into a sudden trip to their Uncle Jake, out on the wild seal-splashed coast. Meanwhile, Mum is on a work mission she didn’t exactly choose, which sends her… WHOOOSH! up to the North Pole. Go huskies! Go walrus! Go penguin and polar bear suits, and… FAR too much snow! Mum’s company is Jumping Jackets. Once the Top Jacket Company in the Universe, it is suddenly being whupped real hard by the mysterious new Juffle Jackets - whose clothes are just spooky warm. How do they do it? Do they REALLY steal rare birds for their super-heated feathers?And… more importantly, who can save Mum? Well - soon enough, it starts to look like Mum’s problem is also Katie and Dan’s problem. As Uncle Jake explains, the juffles are some strange unlikely birds - but they DO actually exist. And someone is poaching them from this very coast. You may have heard, these days, about how Nature is a very sensitive thing. A thing being messed up pretty bad by human carelessness. Well, on the Juffmadoc coast, this is equally true. So, when the juffles are taken, the weather goes weird, the fish disappear, and the sunny fun holiday tumbles into one wild helter-skelter mission. Can Jake, Katie and Dan find the magical Seal Island? Do purnapples taste as good as they look? Can they stop the mean and nasty juffle hunters? Read on, if you dare. As Mum’s arctic guide Joseph tells her at their darkest Arctic Hour: ‘Nature always finds a way.