Grindlegraves captures Newt - and, deciding that the magizoologist brother of one of England's most powerful aurors may be useful down the line, throws him in the dungeon currently occupied by Original!Graves.
He then arranges for them to be bitten by a werewolf. To Grindelwald's mind, his prisoners will be forever altered, forever bear his mark - even in the unlikely event of their escape.
The two prisoners end up replying very heavily on one another. Newt's the one who knows exactly what's happening - he's able to talk Graves through the precautions and preparations they need to take, who can explain the sudden instincts and urges ripping through them like wildfire. Graves is the protector - the one who channels rage into willpower and keeps them both /safe/.
Original!Graves/Newt - Co-Dependent Werewolves
He then arranges for them to be bitten by a werewolf. To Grindelwald's mind, his prisoners will be forever altered, forever bear his mark - even in the unlikely event of their escape.
The two prisoners end up replying very heavily on one another. Newt's the one who knows exactly what's happening - he's able to talk Graves through the precautions and preparations they need to take, who can explain the sudden instincts and urges ripping through them like wildfire. Graves is the protector - the one who channels rage into willpower and keeps them both /safe/.
Much to their surprise, they thrive.