  A class of dynamical dark energy models is constructed through an extended
version of fermion fields corresponding to phantom dark ghost spinors, which
are spin one half with mass dimension one. We find that if these spinors
interact with torsion fields in a homogeneous and isotropic universe, then it
does not imply any future dark energy singularity or any abrupt event, though
the fermion has a negative kinetic energy. In fact, the equation of state of
this dark energy model will asymptotically approach the value $w=-1$ from above
without crossing the phantom divide and inducing therefore a de Sitter state.
Consequently, we expect the model to be stable because no real phantom fields
will be created. At late time, the torsion fields will vanish as the
corresponding phantom dark ghost spinors dilute. As would be expected,
intuitively, this result is unaffected by the presence of cold dark matter
although the proof is not as straightforward as in general relativity.
