- Baby Intelligence: "He can read minds?"
- Annabeth: "Just like Bartholomew Gales, you have no subtlety, child. You do not understand fine distinctions. Only Muggles talk of 'mind-reading'. The mind is not a book, to be opened at will and examined at leisure. Thoughts are not etched on the inside of skulls, to be perused by any invader. The mind is a complex and many-layered thing, Baby Intelligence ... or at least, most minds are ..."
- — Annabeth explains "mind-reading" to Baby Intelligence[src]
Mind-reading is the ability to perceive the thoughts or feelings of others through extrasensory means. According to Annabeth, this term is used only by Muggles and is a notably inaccurate description of possession (as there are far broader possibilities for this ability). Nonetheless, the art of possession can achieve mind-reading, as could the mental connection that was shared by Mr. Stupid NoHead and Baby Intelligence.