  We report high-cadence photometry of the ultra-fast ($t_2\sim1.2$ d) nova
V1674 Her during its rise to maximum light ($V\sim6.3$) and the beginning of
its subsequent decline. These observations from Evryscope and the Mount Laguna
Observatory All-Sky Camera reveal a plateau in the pre-maximum light curve at
$g\sim14$ ($\sim$8 mag below peak) that lasted for at least three hours.
Similar features (so-called pre-maximum halts) have been observed in some novae
near maximum light, but to our knowledge the detection of a plateau in the
light curve $\sim$8 mag below peak is unprecedented.
