the_debt_of_time

Despite not looking in a mirror, Remus could feel the way his eye flashed gold.
"Don't."
"To rescue Harry?" Dumbledore continued. "He looks quite like James, doesn't he?
But―"
"Lily's eyes."
"Yes." Dumbledore nodded. "He's grown into quite the young man."
Something bitter rose to the surface, and Remus growled. "Something I might have
known had he not been taken from me. You knew what James and Lily wanted. If
something were to happen to them and to... and to Sirius, Harry was to go to me."
"Were you capable of caring for an infant?" Dumbledore asked, and Remus ignored
him. They'd had this particular argument before, and Remus was merely expressing his
guilt over not fighting harder for Harry.
"You sent him to Lily's sister," he said with a scowl. "And don't talk to me about
the importance of family, because I've met those particular Muggles myself. It was our―"
He paused and then corrected, "It was my job to take care of him. My job to keep him safe."
"Then do so now. Sirius Black has escaped Azkaban."
Remus winced at the reminder.
"It should have been impossible. It's never been done before. Would you happen
to know how he could have achieved such a feat?"
Remus had had a month to think about it and yes, he did have a few thoughts.
Though he had not any idea as to how Sirius had escaped, he was very well aware of why
the Aurors had not yet caught him. Sirius was very likely hiding right under their noses as
Padfoot. Unfortunately, when he attempted to mention this fact to the headmaster, the
Unbreakable Vow gave him a warning by burning his wrist. He held back the sign of
physical pain, pulling his hands into his lap.
"Remus, I love you. You're my best friend, and I love you. Please take care of him. Remember
what I said: trust Sirius. Always Sirius."
"I promise."
"No," Remus lied and felt the burn in his wrist go away.
Dumbledore observed him carefully and then nodded. "The Ministry has brought
dementors to our doors in search of the man. We can only assume he has come for Harry."
"Don't assume anything about Sirius Black."