The stones are hatching

Eleven-year-old Phelim and his companions, a Maiden, a Fool, and a strange black Horse, journey to the Stoor Worm's lair to destroy the long-forgotten Worm and its Hatchlings, who have been roused from their slumber by the sounds of war.

Open the interactive version on https://mythscribe.cloud/app/work/cmmoz2nh813ozmj01bzzfu2ab.