Jim Henson & Adam Smith 
Jim Henson’s Beneath the Dark Crystal Vol. 1 [PDF ebook] 

With the Crystal healed and the Skeksis banished, Kensho and Thurma return to their separate worlds to enjoy the peace they fought so hard to ensure. But when Kensho arrives at the Crystal Castle, the Gelfling look to him to take the place of Jen and Kira as leader of Thra. Unsure if he, or anyone, is fit to rule, Kensho sets out into the wild to rectify the sins of the past and better understand the world he saved. Meanwhile, Thurma strives to rebuild the realm of Mithra as the newly-crowned Ember Queen. But her own quest to decide the future of her land is thrown into question when a Fireling from a noble bloodline makes a claim as the true heir to the throne. Written by Adam Smith (Long Walk to Valhalla) and gorgeously illustrated by Alexandria Huntington, Beneath the Dark Crystal Volume One dives deep into the worlds of the Gelfling and Firelings and examines the burden of responsibility that comes with heroism.