[The tracker installed on Sans's phone exists, initially, to alert his brother to abrupt changes in his online activity. For all that the tracker has taken to delaying responses and avoiding much detail, unhappy with the secrecy of this monitoring... Later events have convinced him to accept the expanded scope of flagging Papyrus if something deeply strange or alarming is happening, and to activate the GPS in a clear emergency.
This isn't, at first. The casual conversation, garbled follow up in Sans's voice... Those don't set off immediate flags. Not with how occasional half-asleep mumbling from his brother happens often enough to not warrant analyzing those moments in detail (not that he remembers much of the mumbling, but he has a note that it happens, and adjusted his standards accordingly.)
But that strange whispering does grab his attention, though. Not the same as the sounds that occasionally leak from Sans's soul, but clearly not good - not with those scraping sounds, or the way that hysterical laughter transitions into pained screaming.
Halfway across the city, Papyrus's phone starts going off with notifications, accompanied by coordinates as accurate at the tracker can get them...]
1/2 [in the canyon, now remembering how tag order works]
This isn't, at first. The casual conversation, garbled follow up in Sans's voice... Those don't set off immediate flags. Not with how occasional half-asleep mumbling from his brother happens often enough to not warrant analyzing those moments in detail (not that he remembers much of the mumbling, but he has a note that it happens, and adjusted his standards accordingly.)
But that strange whispering does grab his attention, though. Not the same as the sounds that occasionally leak from Sans's soul, but clearly not good - not with those scraping sounds, or the way that hysterical laughter transitions into pained screaming.
Halfway across the city, Papyrus's phone starts going off with notifications, accompanied by coordinates as accurate at the tracker can get them...]