Concept Art
See original sketches and other artwork from the making of the Planet Nine Trilogy.
From the Planet Nine Sketchbook: Creature Designs
From the Planet Nine Sketchbook: Other Designs
Concept for Merlin's Palace in The Warden of Planet Nine
This pencil drawing of Groc meeting the astronauts was intended to be an illustration for The Settlers of Planet Nine, but the illustrations in the final version were done in pen and ink due to the quality of printing.
This is the emblem for the Extraterrestrial Settlement Project (ETSP), the major space program in the Planet Nine Trilogy.