He remained there for over a year, being pressed by Frederick to return to Berlin who claimed that the Academy was out of control now its director was absent. This Maupertuis did in 1754 but then he was apparently blackmailed by a girl who claimed that he was the father of her child.
Siya ay nanatili doon sa loob ng isang taon, sa pamamagitan ng pagiging pipi Frederick upang bumalik sa Berlin na inaangkin na ang Academy ay out of control na ngayon ang director ay wala. Maupertuis na ito ay sa 1754 pero pagkatapos ay siya ay apparently blackmailed sa pamamagitan ng isang girl na inaangkin na siya ay ang ama ng kanyang anak.