Quoting from "The Hero with a Thousand Faces," page 69 - "For those who have not refused the call, the first encounter of the hero-journey is with a protective figure (often a little old crone or old man) who provides the adventurer with amulets against the dragon forces he is about to pass."
Charlie has two early encounters with mentors. On each occasion he is given something that qualifies as "amulets against the dragon forces...." The first meeting occurs in Chapter Six, The Rusty Scuttle. The two mysterious figures that come to his aid in the tavern hand over a sword. Let me quote from that chapter. "One of the men pulled a medium-sized sword and scabbard out from under his cloak. He handed it to Charlie. In the dank, dark air of the tavern, it was easy to see that the sword and scabbard gave off a soft blue and gold light." The reader will find out latter, that the sword is magic.
The second meeting is with the Morianders. This happens in Chapter Thirty-Four, Calm Before the Storm. Charlie is handed the diary. He already has the key that was given to him by his mother.
So, in my "retelling" of the hero's journey, Charlie receives "supernatural aid" in the forms of the key to the diary, the diary, the compass that once belonged to his grandfather, the locket that was given to him by Rocky and the sword that he receives in the Rusty Scuttle. Technically, the compass, key and locket are a bit different than the sword and the diary in that they were given to Charlie not specially by mentors but rather by female characters in the story which Charlie will use to settle the score with the "atonement with the father." (more on that latter.) If that makes any sense. What grand fun this is!