Teleporting Accurately

 /---------------------------------------------------------------------------\
 | Extent of familiarity       | % Failure | Fumble bonus | Base Orientation |
 |---------------------------------------------------------------------------|
 | Never Been, Never Described |    75 %   |     + 50     |  Extremely Hard  |
 |---------------------------------------------------------------------------|
 | Never Been, Had Described   |    50 %   |     + 40     |  Very Hard       |
 |---------------------------------------------------------------------------|
 | Been Briefly (< 1 hour)     |    25 %   |     + 30     |  Hard            |
 |---------------------------------------------------------------------------|
 | Studied      (1 Hour)       |    10 %   |     + 20     |  Medium          |
 |---------------------------------------------------------------------------|
 | Studied      (24 Hours)     |     5 %   |     + 10     |  Easy            |
 |---------------------------------------------------------------------------|
 | Studied      (7 days)       |     1 %   |     + 0      |  Light           |
 |---------------------------------------------------------------------------|
 | Lived in     (1 year)       |   0.1 %   |     - 10     |  Mundane         |
 \---------------------------------------------------------------------------/
  NOTE : Post Teleport Orientations are based on Reasoning and Quickness.
  NOTE : Maximum ceiling for teleport spells is 8 miles.

                       Teleport Fumble Table

/----------------------------------------------------------------------------\
|  Roll     | Result                                   | Teleport into Solid |
|----------------------------------------------------------------------------|
|  01 -  25 | Deviate d% feet.                         | Stunned d6 rounds.  |
|----------------------------------------------------------------------------|
|  26 -  50 | Deviate d% feet,   +1 level orientation. | Stunned d8 rounds.  |
|----------------------------------------------------------------------------|
|  51 -  75 | Deviate d% yards,  +1 level orientation. | Stunned d10 rounds. |
|----------------------------------------------------------------------------|
|  76 -  89 | Deviate d% yards,  +2 level orientation. | Stunned d12 rounds. | 
|----------------------------------------------------------------------------|
|     90    | Deviate d% miles,  +3 level orientation. | Stunned 2d12 rounds.| 
|----------------------------------------------------------------------------|
|  91 -  99 | Deviate d% miles,  +2 level orientation. | Stunned 2d8 rounds. |
|----------------------------------------------------------------------------|
|    100    | Deviate 10d% miles,+4 level orientation. | Out d8 minutes.     |
|----------------------------------------------------------------------------|
| 101 - 109 | Deviate d% miles,  +3 level orientation. | Out 2d10 rounds.    |
|----------------------------------------------------------------------------|
|    110    | Deviate 20d% miles,+5 level orientation  | Coma                |
|----------------------------------------------------------------------------|
| 111 - 119 | Deviate 10d% miles,+3 level orientation. | Out d10 minutes.    |
|----------------------------------------------------------------------------|
|    120    | All casters equipment teleports to       |                     |
|           | location with normal deviation chance,   |        --           |
|           | caster can only blush in frustration.    |                     |
|----------------------------------------------------------------------------|
| 121 - 129 | Deviate 10d% miles,+4 level orientation. | Coma.               |
|----------------------------------------------------------------------------|
|    130    | Random limb disappears to parts unknown, |        --           |
|           | +12 hits/rnd.                            |                     |
|----------------------------------------------------------------------------|
| 131 - 139 | Deviate 20d% miles,+5 level orientation. | Death.              |
|----------------------------------------------------------------------------|
|    140    | D6 bones vanish from casters body to     |                     |
|           | surprise geologists in future generations|        --           |
|----------------------------------------------------------------------------|
| 141 - 149 | Deviate 30d% miles,+6 level orientation  | Disintegrated.      |
|----------------------------------------------------------------------------|
|    150    | Internalise spell, caster teleports his  |                     |
|           | internal organs with pinpoint accuracy;  |        --           |
|           | Body collapses inwards for want of       |                     |
|           | internal support, Sad.                   |                     |
\----------------------------------------------------------------------------/

    Source: geocities.com/SiliconValley/3891

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