Three's Family (смешанная)

It’s May 1979 and the Order has just apprehended a pair of mysterious wizards who look remarkably like a Potter and a Malfoy. Naturally, James Potter and Sirius Black are called in to identify the strangely familiar strangers and determine their backgrounds and loyalties.
(This would be a lot easier if their captives weren’t convinced everyone they talk to is dead. It would also be easier if they didn’t spend half their bloody time bickering.)
**
“Just ask them questions only they would know the answer to,” Malfoy suggests.
“There’s not a single thing that I know about either of them from the first war that any old Death Eater couldn’t find out.”
“How is that possible?” Malfoy huffs. “He’s your father!”
“Am I or am I not famously an orphan?” Potter snarls.