(Reward obtained in the patreon of the artist who made this drawing.)
Nolwen and Elowen come from two different eras (or worlds), one in an ancient era and the other in a modern era, both of heroic fantasy.
Because of this, each kelpie has a different hunting method.
Nolwen's is to go to her cell phone and open the Tinder application, to find these future prey for the guests on a date, as if it were an online order for a meal.
Elowen, who watches how Nolwen uses this strange little box to find these prey and cannot understand what kind of magic or witchcraft allows prey to appear in front of you, without any effort to leave her swamp to go find her prey.
