  We study the stabilization of a twisted modulus in Type IIB flux
compactifications on a mirror of the rigid Calabi-Yau threefold. By analyzing
the effective action of twisted and untwisted moduli, we find that three-form
fluxes satisfying the tadpole cancellation conditions lead to supersymmetric
AdS vacua. We also investigate swampland conjectures on this non-geometric
background.
