====== Perception ======
**(Wis)**

The perception skill is used to notice fine details or alert you to danger.  It covers all five senses.

**Check:** A perception check can be used to oppose an opponent's stealth check.  Succeeding means noticing the opponent and avoiding being surprised.

^ Detail                                         ^  DC                       ^
| Hear the sound of battle                       |  -10                      |
| Notice the stench of rotting garbage           |  -10                      |
| Detect the smell of smoke                      |    0                      |
| Hear the details of conversation               |    0                      |
| Notice a visible creature                      |    0                      |
| Determine if food is spoiled                   |    5                      |
| Hear the sound of a creature walking           |   10                      |
| Hear the details of a whispered conversation   |   15                      |
| Find the average concealed door                |   15                      |
| Hear the sound of a key being turned in a lock |   20                      |
| Find the average secret door                   |   20                      |
| Hear a bow being drawn                         |   25                      |
| Sense a burrowing creature underneath you      |   25                      |
| Notice a pickpocket                            |  Opposed by Sleight of Hand |
| Notice a creature using Stealth                |  Opposed by Stealth       |
| Find a hidden trap                             |  Varies by trap           |
| Identify the powers of a potion through taste  |  15 + potion caster level |

^ Perception Modifiers                        ^  DC Modifier            ^
| Distance to the source, object, or creature |	 +1/10 feet             |
| Through a closed door	                      |  +5                     |
| Through a wall	                      |  +10/foot of thickness  |
| Favorable conditions<sup>1</sup>            |  –2                     |
| Unfavorable conditions<sup>1</sup>          |  +2                     |
| Terrible conditions<sup>2</sup>             |  +5                     |
| Creature making the check is distracted     |  +5                     |
| Creature making the check is asleep	      |  +10                    |
| Creature or object is invisible	      |  +20                    |
|1 Favorable and unfavorable conditions depend upon the sense being used to make the check. For example, bright light might increase the DC of checks involving sight, while torchlight or moonlight might give a penalty. Background noise might reduce a DC involving hearing, while competing odors might penalize any DC involving scent.\\ 2 As for unfavorable conditions, but more extreme. For example, candlelight for DCs involving sight, a roaring dragon for DCs involving hearing, and an overpowering stench covering the area for DCs involving scent.||