|Sources||System Reference Document on page 0|
If you don't have line of effect to your target he is considered to have total cover from you. You can't make an attack against a target that has total cover.
Source Copyright: System Reference Document Copyright 2000-2003, Wizards of the Coast, Inc.; Authors Jonathan Tweet, Monte Cook, Skip Williams, Rich Baker, Andy Collins, David Noonan, Rich Redman, Bruce R. Cordell, John D. Rateliff, Thomas Reid, James Wyatt, based on original material by E. Gary Gygax and Dave Arneson.
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