Sirius Black
Sirius looked down at Harry. His godson had finally fallen asleep after crying himself hoarse. He handed Harry over to Hagrid carefully.
"Dumbledore, you said?" Sirius asked. His voice shook with suppressed grief.
"Yeah," Hagrid said, tucking Harry inside his coat. "Have to keep 'im safe."
"Oh," is all Sirius managed to say. He pulls at a strand of his hair, Harry's grip on it a shadow in his mind. A comfortable shadow. James and Lily are dead but baby Harry was alive. His godson was alive. "Where-?"
"His aunt and uncle," Hagrid said, moving around the room as if searching for something. "Dumbledore said he would be safe there."
"Oh," Sirius said again. "Which aunt- oh." Sirius supposes Frank and Alice can be considered as Harry's aunt and uncle as well. They were under the Fidelius too. And from the sound of it, Dumbledore knows where they are. Godric's Hollow might have been betrayed by Peter Pettigrew, that rat, but Augusta was made of solid stuff. She wouldn't have betrayed her son's location. Which reminds him-
Pettigrew, that rat.