I just finished reading bag of bones. And i always like to find connections between Stephen King books (like how dick halloran appeared in both IT and TheShining)
!! SPOILERS FOR BAG OF BONES !!
Towards the end of bag of bones, Mike Noonan and Kyra were able to speak telepathically and read each other's and other people's thoughts. In addition they both saw ghosts of dead people.
That got me wondering if these 2 characters were shiners ?