Book 5 in the internationally award-winning Pie Rat series by Cameron Stelzer. Deep in the heart of Aladrya stands a mighty mountain. Rising high above the clouds, its rocky crags and windswept cliffs are home to four species of birds. With only three days left until the full moon feast, Whisker's mission to find his sister hangs in the balance. Even if he can reach the mountain alive, he still has to outwit and out-fly the dreaded birds of prey.