If the player re-enters the house near the Ice Rock after the Spell Tag is obtained, the woman that gives it has disappeared. When obtaining the Spell Tag, her speech is: "...A person...? ...A rare sight... ...Thank you for visiting... ...A gift..." The nature of the item, in conjunction with Ace Trainer Olivia's comments of hauntings in the area, implies that the woman was a ghost, specifically a Yuki-onna. This also draws parallels with Eterna Forest, where the only other (human) ghosts in the game can be seen.
Route 217 is similar to Route 43 in Johto as both routes are north-south, both routes have the north end as a lakefront, and both lead to the city where the seventh Badge is obtained. Both of these Gyms specialize in Ice-type Pokémon.