The sword maid spares Demilich a nod--and tilts her comely head as the diminutive she-devil fades away before her eyes. When Demilich's ethereal form approaches the door, her ethereal form collides with the door's ethereal aspect. For an ethereal object it is not the least bit permeable. Some ward? Or perchance something more elementary? Elminster has certainly existed long enough to pick up all manner of esoteric tricks. In any case, it would soon become apparent to the Archdevil that she was not going to circumvent the barrier ethereally. The remainder of the tower proves to be, similarly, impermeable to ethereal intrusion.<br/>