On The Edge Of The Dark Sea Of Darkness PB Bk 1 Wingfeather by Andrew Peterson

After living for years under the occupation by the evil Fangs of Dang, the Igiby children find a map rumoured to lead to the lost Jewels of Anniera - the one thing the Fangs will do anything to find. The family is thrown headlong into a perilous adventure, uncovering truths about who they are that will change their world forever. Repackaged with new illustrations, this is the opportunity to discover the Wingfeathers.