In Secret of Evermore, the canine companion is a useful gameplay element that aids in exploration and item discovery. The dog has a special talent for finding hidden objects and interesting locations. Through the 'Call' command, players can direct the dog to sniff out particular locations while simultaneously controlling the protagonist and the dog. The dog's sense of smell allows it to find beneficial items that the player initially cannot see, such as treasure chests, medicinal herbs, and other objects. By utilizing the dog's sniffing abilities, players are encouraged to thoroughly investigate the game's numerous surroundings, which adds a sense of discovery and enhances the overall gameplay experience. The dog's smelling skill in Secret of Evermore is utilized to look for hidden goods and improve the player's exploration and discovery in the game's world.