bob ref: 1d20 + 5 ⇒ (20) + 5 = 25
bob fort: 1d20 + 1 ⇒ (14) + 1 = 15
3d6 ⇒ (5, 2, 2) = 9
The spiked metal ball smashed into those of you clustered in the room, the metal spikes tearing into flesh as they collided. Only Bob was able to avoid the immensely heavy ball, stepping back into the doorway. Everyone else was thrown to the ground, with the exception of Evangline and Trihedron. The barbarian woman took the damage from the spike stoically, stepping back to allow the ball to continue past her. Trihedron, however, was caught completely flat-footed.
Instead of being knocked down or thrown aside, Tamis' sister was impaled on the foot-long spikes. Her body flapped and rolled with the ball as it continued into the room, then paused and reversed direction. Those that had been thrown to the ground by the ball's first pass were injured again as the ball reversed its direction and rolled back down the hallway, Trihedron's limp form being driven further and further onto the ball's spikes as it moved down the hallway.
Everyone who failed their Fort save were knocked prone, and then took another 9 damage on the ball's second pass (total of 19 damage so far)