Voldemort has given them until dawn to treat their wounded, tend to their dead. But when every body is accounted for and there are no more bones to set, what are they supposed to do while they wait for Harry to decide how this war will end? When you aren't sure if you'll survive the next 24 hours it makes you question whether some secrets are worth keeping.
After Voldemort disappears, the war ends but Remus is left with nothing but questions and heartache. Despite what everyone's saying part of him knows Sirius is innocent, Dumbledore's being less than helpful and on top of that, a series of unexpected events end with him in charge of his best friend's orphaned son.