  We suggest a geometric approach to quantisation of the twisted Poisson
structure underlying the dynamics of charged particles in fields of generic
smooth distributions of magnetic charge, and dually of closed strings in
locally non-geometric flux backgrounds, which naturally allows for
representations of nonassociative magnetic translation operators. We show how
one can use the 2-Hilbert space of sections of a bundle gerbe in a putative
framework for canonical quantisation. We define a parallel transport on bundle
gerbes on $\mathbb{R}^d$ and show that it naturally furnishes weak projective
2-representations of the translation group on this 2-Hilbert space. We obtain a
notion of covariant derivative on a bundle gerbe and a novel perspective on the
fake curvature condition.
