The Vara de Radiestesia first appears in Volume 2 as a specialized mystical navigation tool designed to ensure safe passage and return from the treacherous grey fog realm. Throughout the series, this dowsing rod evolves from a simple navigational instrument into a critical artifact that bridges the physical world with the mysterious domain above the grey fog, becoming essential for characters who must traverse between these realms. Its significance grows as it transforms from a mere safety device into a key component in the larger metaphysical framework of the story, representing humanity's attempt to safely interact with forces beyond normal comprehension.

The Vara de Radiestesia first appears in Volume 2 as a specialized mystical navigation tool designed to ensure safe passage and return from the treacherous grey fog realm. Throughout the series, this dowsing rod evolves from a simple navigational instrument into a critical artifact that bridges the physical world with the mysterious domain above the grey fog, becoming essential for characters who must traverse between these realms. Its significance grows as it transforms from a mere safety device into a key component in the larger metaphysical framework of the story, representing humanity's attempt to safely interact with forces beyond normal comprehension.