This suggests that the troll was known to Hogwarts as “The Defense Professor”, and so explains what the wards reported:
″… The wards of Hogwarts record that no foreign creature has entered, and that it was the Defense Professor who killed Hermione Granger.”
Ok. In that case, Quirrell can be hiding on his person or in some magical ‘all-holding invisible pocket’ an army of trolls, or anything he thinks would be better suited for attack (transfigured wizards?), and Dumbledore is ultimately doomed.
This suggests that the troll was known to Hogwarts as “The Defense Professor”, and so explains what the wards reported:
Ok. In that case, Quirrell can be hiding on his person or in some magical ‘all-holding invisible pocket’ an army of trolls, or anything he thinks would be better suited for attack (transfigured wizards?), and Dumbledore is ultimately doomed.