  The classical nova, AT 2023prq, was discovered on 2023 August 15 and is
located at a distance of 46 kpc from the Andromeda Galaxy (M 31). Here we
report photometry and spectroscopy of the nova. The 'very fast'
($t_{2,r^{\prime}}\sim3.4$ d) and low luminosity ($M_{r^{\prime}}\sim-7.6$)
nature of the transient along with the helium in its spectra would indicate
that AT 2023prq is a 'faint-and-fast' He/N nova. Additionally, at such a large
distance from the centre of M 31, AT 2023prq is a member of the halo nova
population.
