all the other modifiers have been taken into account.
The ranger must be unobserved while attempting to conceal himself. If an NPC or creature is watching him, the ranger can't hide successfully. If the NPC or creature becomes distracted, even momentarily, the ranger can slip into the area of concealment and attempt to hide.
While hiding, the ranger must remain immobile, except for slow and careful movements, such as readying a weapon or sipping from a flask.
If the area is completely dark--for instance, if there's an overcast sky in the dead of night--the ranger gains no special advantages from hiding in shadows, and can't use this ability.
If all these conditions are met, the DM rolls percentile dice as soon as the ranger has concealed himself. The DM doesn't tell the ranger the result of the roll; rather, the ranger learns if the attempt is successful from the reactions of those in the area.
If the check is less than or equal to the ranger's adjusted hide in shadows score, the ranger has successfully concealed himself. He's essentially invisible to all others in the area, including his companions. He has hidden successfully until he changes locations; an attempt to hide in shadows in a different area requires a new die roll. Characters using spells or magical items that reveal hidden or invisible objects can detect him. Likewise, creatures who use their sense of smell to locate prey or other exceptionally keen senses have their normal chance of snif ing out a ranger hiding in shadows.
If the check is greater than the ranger's hide in shadows score, he's failed to conceal himself and is as exposed as any normal character would be in the same area. This doesn't necessarily mean that others will notice him, especially if the area of concealment provides a lot of natural cover, such as a cluster of bushes or the long shadow from a tall tree. However, the ranger may not know if he's succeeded or failed until it's too late--for instance, if an NPC suddenly turns and charges.
Moving silently enables the ranger to move with a minimum of sound, almost as if he's walking on air. Even creatures with the sharpest ears are no more likely to detect his presence than they are to hear a feather drop. The ability works equally well in icy mountains, heavily wooded forests, or any other type of wilderness terrain.
Getting from place to place without being heard is only the most obvious application of this ability. Other uses include:
Sneaking up on one or more opponents in order to surprise them.
Examining the contents of a cart or a cabinet by removing the objects one by one, then replacing them in silence. (However, silent movement applies to the character's actions only; therefore, this ability would not negate the sound of a squeaking cabinet door or rusty hinge of a trunk.)
Change armor or clothes.
Other actions the DM allows, such as restringing a bow, or cutting a slit in the back of a tent.
Table 8 in Chapter 1 provides the base chance for moving silently, modi ied by the variables in Tables 9-11. If the ranger attempts to move silently inside a building or in any other non-wilderness area, his modified score is halved. Other restrictions: