Percival is slowly putting his life back together and find some self intrigued by Knute and his case of magical creatures when the young wizard returns to America. He's even more surprised when he finds out that very much alive Creedence is with him. The two younger men are wary of him but Percival wants them both. So when inevitably some of Newt's fantastic creatures get loose instead of hunting all of them down Percival shows a gentle side of himself and protects the creatures and brings them back to Newt. Newt and Credence both fall for Percival when he dies something very sweet, like give the Niffler something shiny or calm a scared creature down. They go from there with all the ups and downs of a relationship.