Rosamond is visiting Scandinavia when she loses something. She wants Nate the Great to find it, even though he doesn’t know what she lost, what country she lost it in, or when she lost it. And he’s thousands of miles away.
But if Nate doesn’t take the case, Rosamond plans to hire the King of Sweden. Nate doesn’t want Rosamond to bother the poor king. And he does want the chance to solve his first-ever international case. Can Nate find whatever Rosamond lost without leaving his neighborhood?
蘿莎蒙在斯堪的納維亞弄丟了一樣東西，於是她希望大偵探幫忙尋找。然而對於遺失了什麼、在哪國遺失、何時遺失的，她皆一無所知，而且奈特遠在千里之外。
如果奈特拒絕幫忙她，蘿莎蒙將會尋求瑞典國王協助，但奈特不希望蘿莎蒙打擾這位可憐的國王，而且奈特確實希望有機會解決他的第一起國際案件。奈特可以不離開方圓之內，就找到蘿莎蒙遺失的東西嗎？