Lightning Bolt har ett effektområde; 'Linje'.
Från CRB-kapitlet om magi :
A line-shaped spell shoots away from you in a line in the direction you designate. It starts from any corner of your square and extends to the limit of its range or until it strikes a barrier that blocks line of effect. A line-shaped spell affects all creatures in squares through which the line passes.
Implikationen från slutlinjen är att ja en linjeformad stava passerar genom varelser.
I avsnittet CRB om Combat, wrt Total Cover:
Total Cover: If you don't have line of effect to your target (that is, you cannot draw any line from your square to your target's square without crossing a solid barrier), he is considered to have total cover from you. You can't make an attack against a target that has total cover.
Så Total täckning definieras som en brist på effektlinje.
Men en varelse ger bara mjukt skydd:
Soft Cover: Creatures, even your enemies, can provide you with cover against ranged attacks, giving you a +4 bonus to AC. However, such soft cover provides no bonus on Reflex saves, nor does soft cover allow you to make a Stealth check.
Så genom täckningsreglerna, ja, din stavning kommer att passera genom varelser eftersom de inte ger total täckning.