Isla and Lac's mum is missing, but has left clues, and an emergency credit card. The children travel from Birmingham to Mora, a Scottish island, camping and tracking their mum. Hampered by challenges and unsure of who to trust, can Isla and Lac succeed in their mission? What else will they find... and lose? For ages 10 and up.

A beautiful, gripping, realistic story about a brave girl and her little brother on a seemingly impossible quest. An unpredictable rollercoaster from start to finish. There's a wonderful sense of place, and the ending satisfied me completely.
- Clare Weze, author of The Lightning Catcher and The Storm Swimmer

By the end of this touching and unpredictable coming-of-age story, the Mission has gathered layers of meaning in an ever-deepening mystery and adventure. Just when it looks like Isla and Lac have accomplished one mission, another begins. A unique tale with a vivid setting and dynamic characters: I was hooked to the end.
- Jennifer Burkinshaw, author of Igloo and Happiness Seeker