User blog comment:Morganaforever/Episode Review: The Dark Tower/@comment-5204542-20121110221633/@comment-5674726-20121111002614

''But why did Morgana not just magic the cobwebs away. WHY WOULD YOU WANT TO EAT OFF A TABLE WHICH IS COVERED IN COBWEBS?!''

Maybe she didn't want to give the impression that she stayed any longer than it took to deliver Guinevere and set up her sword trap. The less Morgana disturbs her surroundings, the more plausible it will be if Guinevere is supposed to tell Arthur that Morgana was long gone by the time he arrived.