“You just walked through a wall."..."Phasers do that sometimes.”
A Phaser is one of the special abilities an elf may manifest as. Phasers have the ability to break down their cells (think light leaping) in order to walk through solid objects such as walls, or even swords. Some talented Phasers are able to disassemble only parts of themselves like Blur, appearing partly visible and smudged. The Silver Tower and Gold Tower and Exile are inpenetrable to Phasers.