Her eyes widened in fear as the spell was stopped.  The priestess must have been protected in some way.  she tried to cast a counterspell but the priestess's was too fast.  She gasped, whimpering as she felt herself being weghed down.  She slowly stumbled forward trying to run but it was getting heavier.  She stumbled forward onto her knees then fell forward.  She lay there gasping unable to move anything.