Described by some critics as "adolescent fiction", Grin's works in fact have a universal appeal. Like the authors of fantasy of the second half of 20th century, Grin deals with human desires and emotions in their most pure form. His world is not a fairy tale; it has many things in common with the reality of the early 20th century (such as automobiles and banks), but it's always more romantic and "childish" in the general feel. Populated by sea captains, sailors, scientists, travellers, criminals, extravagant aristocrats, childlike girls, elegant villains, and strong-spirited heroes who always stay true to their dream, Grin's world (often referred to as Grinlandia by Grin's fans) is one of the most attractive and "livable" fantasy worlds in literature. Some of his novels contain an element of magic - not as an established part of his world, but always as a miracle that changes the lives of those who encounter it.