When zoning to level 2, if the spectres on level 1 are still up and attacking you, move away from the zone in point on level 2 as the spectres seem to still be able to attack you from the other side but won't follow you in once you move away.
On the other hand, the ghosts in the library CAN follow you through the mirror to the next level so if you get into trouble in the library and have found the key already zoning through the mirror WON'T save you and will probably make things worse if something is standing near the zone in on level 3.
Edited, Nov 13th 2009 3:09pm by animekenji