User blog comment:Morganaforever/Series 4 Cliffhanger/@comment-4135736-20120223124114/@comment-4623180-20120223124614

Do you think Morgana SUDDENLY got her magic back at that point? It looked to me like Merlin was actually SUCKING her magic up, and that charge and blast sound we heard was him releasing it on Morgana, which sent her flying. While that doesn't fully explain the teleporting, the poppet could have lost its effect then, and Morgana's magic went into rescue mode and she disappeared. If she got it back a bit earlier, she certainly would've used it on Gwen instead of sword fighting her.