Original: Jones then lights a flare by piercing it with one of the nails and holds it up in order to locate the door. He then leaves the room and enters a fourth, which is occupied by then bassist Paul Gray.
Simplified: Jones then lights a smoke flare, which blinds Taylor, and is seen holding it in his right hand, but he (Taylor) finds the door then leaves the room and enters a fourth which is occupied by bassist Paul Gray.