Super Secret TCG clue!

According to Carta, the author of this book appears to be Caron, a boatman at the River of Death who takes spirits to the underworld. He wrote stories about ferrying those who died to the underworld; but yet returned, somehow brought back to life. As I continued to read, I noticed a familar name. It was The Rememberer of Sleepywood... Carta told me I could find out about the secrets of death if I meet those who returned from the grave. There is a secret here that I must discover!

And Caron perhaps, can be a new NPC in the area.

Um.

"Caron" is a misspelling of "Charon". Charon carried the dead across the river Styx to Hades (the Underworld). See: http://en.wikipedia.org/wiki/Charon_(mythology)

Note: this also ties into Thanatos. Thanatos is the physical embodiment of Death in Greek mythology.