Barnabas' powers seem to come and go. At the very beginning of his being a vampire, Joshua went to the mausoleum and talked to Ben, and Barnabas had to hide inside the secret room. He suddenly came out as a bat. He also suddenly materialized right next to Ben, so he learned of his powers quite quickly. Yet, when Sarah saw him from the window, he hurried aside to try to keep from being seen, instead of disappearing. So, today, when Angelique "locked" the gate, why couldn't he just dematerialize and escape? He did it when Millicent saw him shortly afterwards, so . . . does he realize he has these powers or doesn't he?!!
