  Then Daniel came in and had a resounding confrontation with the Dark Wizard. All the truths from the year came out into the open.  How Quirrell was the one trying to kill Daniel and Snape was protecting him. How he had given the dragon egg to Hagrid in exchange for information on the Cerberus. Honestly do no wizards read a book, Harry easily found it inside the monster book. Damn wizards and their zero logic. Finally, Quirrell explained about how he had Voldemort in the back of his head, that was a shock to all parties. Also, quite stupidly in Harry's mind, Daniel got the Stone. If Mirror-Daniel really gave the boy the Stone while he stood in front of a Dark wizard then even Daniel's mirror image was idiotic.