  The magnetospheres of accreting neutron stars develop electrostatic gaps with
huge potential drops. Protons and ions, accelerated in these gaps along the
dipolar magnetic field lines to energies greater than 100 TeV, can impact onto
a surrounding accretion disc. A proton-induced cascade so develops, and
$\nu$-emission is produced from charged pion decays. Using GEANT4, a computer
code that tracks particles produced in high energy collisions, we have
calculated the resulting $\nu$-spectrum with extensive disc shower simulations.
We show that the $\nu$-spectrum produced out of the proton beam is a power law.
We use this result to propose accretion-powered X-ray binaries (with highly
magnetized neutron stars) as a new population of point-like $\nu$-sources for
km-scale detectors, such as ICECUBE. As a particular example we discuss the
case of A0535+26. We show that ICECUBE should find A0535+26 to be a periodic
$\nu$-source: one for which the formation and loss of its accretion disc can be
fully detected. Finally, we briefly comment on the possibility that smaller
telescopes, like AMANDA, could also detect A0535+26 by folding observations
with the orbital period.
