In this fabumouse adventure, the Thea Sisters head to Alaska, where they're attending a conference held by an important ecological association. Their host and his family are native Alaskans who show the mouselings their favorite games and activities. But soon there's trouble--the Thea Sisters discover that someone is upsetting the ecosystem by blowing up the ice with explosives! Can the Thea Sisters figure out what's going on and stop the destruction before it's too late?


在這場驚奇「鼠」不清的冒險裡，西雅姊妹來到阿拉斯加參加一場由重要生態保護聯盟所舉辦的會議。接待她們的是阿拉斯加本地人，他們十分熱情地向姊妹倆介紹當地時興的運動與活動。但是，她們卻碰到了大麻煩。西雅姊妹發現，竟有不肖之徒要炸掉冰川，意圖打亂生態體系！究竟西雅姊妹倆能不能抽絲剝繭找出真相，並且適時阻止破壞發生呢？