Tangled Wood

The fortress occupied by King Valerin, and possibly a kingdom.

Valerin kidnapped Guinevere and brought her back to the Tangled Wood. The fortress - which is reminiscent of an otherworldly location - was set high upon a mountain, and was cordoned by a tangle of brambles, branches, and snakes that kept out everyone.

Arthur could not break the defenses, and only an intervention by the grand wizard Malduc could undo the magic wall.