  The dipper optical light curves in young stellar objects are commonly
interpreted as partial or total occultation of the stellar radiation by dust
surrounding the star.
  In this work, we analyze the amplitude of the optical light curve of V715
Per, located in the young star forming region IC 348. Observations gathered
over the years suggest that the light curve can be explained by dust extinction
events.
  In our model, the dust is distributed inside the magnetosphere according to
the strength of the stellar magnetic field. The dust distribution is modulated
by the vertical component of the field, whose axis is misaligned with respect
to the rotational axis. We include a model for the evaporation of the dust
reaching the magnetosphere in order to consistently calculate its distribution.
  For V715 Per, there is dust in the optically thick warp at the disk
truncation radius. We suggest that the optical light curve is explained by
extinction caused by dust reaching inside the magnetosphere. The dust
distribution is optically thin and due to the high temperature and low density,
it cannot survive for a long time. However because the grains rapidly move
towards the stellar surface and the sublimation is not instantaneous, there is
a layer of dust covering the magnetosphere responsible for the extinction.
  Dust surviving the harsh conditions of the magnetospheric accretion flow may
be responsible for some of the dipper light curves.
