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Message: <blockquote data-quote="The Sigil" data-source="post: 137853" data-attributes="member: 2013">Re: Re: Line of Effect...An excellent question that admittedly stretches my definition of AM fields and how they work.  Let me rephrase my ruling regarding lines of effect into something that is a little easier to grasp, breaking it down into three cases:Case 1.) An AM field blocks all lines of effect of all objects/areas within the field (i.e., objects/areas within the field can have no lines of effect to anywhere else, inside or outside the field). Case 2.)  An AM field blocks all lines of effect from the outside of the field to objects/areas inside the field (i.e., objects/areas outside the field cannot get a line of effect on an object/areas inside the field).Case 3.) I could stop at 1 and 2 and this one should be clear, but I will add it for emphasis... An AM field does not affect lines of effect from objects/areas outside the field to objects/areas outside the field.  IOW, a valid line of effect between two objects/areas outside the field always exists provided that a valid line of effect would exist if the AM field did not exist.Corollary 1.)  An area effect centered outside the AM field treats the "edge" of the AM field as an impenetrable barrier, affecting creatures outside the AM field (if within range) but not those within it.  An area effect centered inside the AM field is suppressed entirely, even if its area were large enough that ordinarily part of it (the "edges") could exist outside the AM field.  *All* magical effects, including pre-existing ones (including *all* Spell-like and Supernatural abilities), are suppressed within an AM field (line of effect is not really at issue here, but I mention it for completeness) in this manner.Note that this more concise ruling explains why I feel that spellcasters can try to cast (and consequently lose) spells within an AM field... they cast the spell but have no line of effect (including a line of 0 length to themselves for personal/touch spells).  Lines of effect are not lines of length 0 within an AM field, they are negated entirely.  Then again, perhaps this is a relic of my playing the Bard's Tale back in the mid 80's, where you could "try to cast a spell but it fizzles!"Therefore, I would rule in your particular situation that as soon as you out yourself into the AM field, the Project Image spell ends,  as your line of effect is reduced to zero (broken) as soon as you enter the AM field.Similarly, if you cast this spell and three rounds later, a beholder hit you with an AM ray, the spell would end, as all lines of effect you may have had are lost as soon as you enter the AM ray.A good analogy that may help in the visualization is to think of a "cone of darkness" - from the outside, you can "see around it" to the other side, even though everything in the cone itself is pitch black.  So you can see from outside to outside (line of effect always exists between two points outside an AM area, provided one would exist if the AM area were non-existent).  You cannot see stuff within the cone itself from the outside (no line of effect/targeting stuff inside an AM area even from the outside).  Similarly, if you are caught in the cone itself, you can see nothing, not even your hand in front of your face (no lines of effect to anywhere while within an AM field).Please poke holes in this so I can work to get my definition airtight. <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f600.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":D" title="Big grin    :D"  data-smilie="8"data-shortname=":D" />--The Sigil</blockquote>

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