<strong>About forked Lightning:</strong><br/><br/>Some good questions that we should go ahead and determine now since this will not likely be the only time its used inside. As for Aneirins knowledge, let's assume if she KNOWS the spell then she is aware of how it should work. Sure, exceptions can happen but for the most part Aneirin is aware of its capabilities.<br/><br/>So lets look at the spell description and then the properties of walls.<br/><br/><strong>A massive bolt of lightning soars from your palm towards the targets...</strong><br/><br/>First it sounds like line of sight, so no, it cannot be “aimed” around a corner or even at someone with 100% cover for that matter. You must be able to see the target, or make a guess that may/may not be right.<br/><br/><strong>...to fork before impact and hit everyone in the area. </strong><br/><br/>So anyone, friend or foe, even animals or non-humanoids are hit within the strike zone (20')<br/><br/><strong>Unattended objects also take this damage.</strong><br/><br/>OK, so anything takes damage as well.<br/><br/><strong>Unless it impacts upon a material body or solid barrier prior to attaining the prescribed range, the lightning arc at that point. An early impact results in damage only to the creature or object hit.</strong><br/><br/>So it either forks at your designated target OR it strikes early and ONLY the object or person hit takes the damage (It does not fork).<br/><br/><strong>If you attempt to send the lightning bolt through a narrow passage, such as through an arrow slit, you must "hit" the opening with a ranged touch attack,</strong><br/><br/>The hallway is NOT a narrow passageway for our purpose here. Lets say (in the future) that narrow is a 2' square or smaller. Can you edit the spell to say that, please?<br/><br/><div align="center"><strong>~~~~~~~~~~~~~~~~~~~~~~~~</strong></div><br/><strong>OK, so walls. There is Hardness and Hps:</strong><br/><br/>Wood Hardness is 5 and HP's are 10/in. of thickness<br/>Stone is 8 and 15/in. of thickness<br/>Iron or steel is 10 and 30/in. of thickness<br/><br/>Hardness is like DR so the first 5 HP's for wood do not count.<br/>Also, energy attacks deal half damage to most objects. Since wood does not conduct electricity I think this would apply here.<br/><br/><strong>When objects take half their total hit points gain the broken condition. When an object's hit points reach 0, it's ruined.</strong><br/><br/>OK, so I am going to say that a basic inside wall is 4” thick and an outside wall 6” thick. So 40 and 60 HP's respectively. This is per 5' section of wall.<br/><br/>If your spell does 70 Points of damage and strikes an inside wall, it would do 70/2 = 35 – 5 = 30 HP damage to the wall. That would give it the Broken condition however, that has no effect on a wall. So in a sense, nothing happens. At full damage it is ruined and thus useless as a wall. This could have many different results from just being an opening to a roof collapse.<br/><br/>I included (below) 2 examples based on your OOC. The yellow is the 20' spell radius. Red lines are walls that are impacted.<br/><br/>In example 2, note that you would not get hit but neither would NPC 6 if he stayed in D8 as you told him. Also note Glass (Windows) have a Hardness of 1 and 1 HP/inch so the glass would shatter. The boards over it are 1” so they too would likely be obliterated.<br/><br/>Hope that answered your questions.<br/><br/>(https://elliquiy.com/elluiki/images/e/ef/Example1.jpg)<br/><br/>(https://elliquiy.com/elluiki/images/a/a7/Example2.jpg)<br/>