Fragments and Fissures

Draco Malfoy had temporary amnesia that lasted exactly 2 nights while he was in hospital. So why does he keep having visions of things that never happened? Why does seeing his platonic work colleague Hermione Granger spark the strongest - and most erotic - vision of all? Hermione is strangely reluctant to discuss it, but Draco will get to the truth - even if it destroys them both.