Bundle up! Dev, Tuna and Hiu are returning for another summer of mischief, fun and adventure – this time, on the towering heights of Mount Everest!When Dev’s boredom lands him in some trouble, his parents banish him to Everest Base Camp for the summer to join his dad on a research trip. With freezing winds, endless maths worksheets and ice instead of ice cream, Dev expects to have a miserable time. But when he reunites with his friend Hiu the Yeti, he’s invited to Yetiville, which is plagued by a horrible smell. How did the stench reach the world’s highest mountain? And can Dev help the Yetis clear it away while defeating boredom once and for all?