Re: A 541
Quote Originally Posted by Andezzar View Post
But still everything behind the window is not on the prime material plane (or wherever the rope rick was cast), so how can the fireball affect the contents of the extradimensional space?
That's a peculiarity of the Fireball spell, not most spells.
Quote Originally Posted by Rope Trick
Spells cannot be cast across the extradimensional interface, nor can area effects cross it.
Quote Originally Posted by Fireball
You point your finger and determine the range (distance and height) at which the fireball is to burst. A glowing, pea-sized bead streaks from the pointing digit and, unless it impacts upon a material body or solid barrier prior to attaining the prescribed range, blossoms into the fireball at that point. ... If you attempt to send the bead through a narrow passage, such as through an arrow slit, you must “hit” the opening with a ranged touch attack, or else the bead strikes the barrier and detonates prematurely.
I think I actually misread the question, though. A Fireball detonated under the Rope Trick window won't affect the insides of that extradimensional space; the effect can't cross planar boundaries. However, Fireball can be cast under the Rope Trick and the bead shot through the window like any other ranged attack, and (assuming the spellcaster makes the ranged touch attack) will detonate inside. Neither the casting nor the area effect cross the planar boundary; those are separated by the ranged attack.