Jon hid the rapier behind his back and the first Voth rushed in, a scimitar held high.
Jon was unprepared and had no weapon when the Voth showed up for a fight. 
mnli hypothesis: Jon was unprepared and had no weapon when the Voth showed up for a fight.  premise: Jon hid the rapier behind his back and the first Voth rushed in, a scimitar held high.