Tilly has no plans for the summer holidays and is dreading months of boredom -- that is until she becomes part of The Adventure Club and wins a place to go track and monitor endangered red pandas in Nepal! In the Himalayas, she meets other members of the club, rides on yaks, plants a bamboo forest and even spots the secretive red panda. But then the red panda Tilly and her team has been monitoring disappears. Will Tilly be able to help find it, or will her first ever adventure end in disaster?