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| Other Names | Rumbler |
| Climate/Terrain | Deep subterranean caves |
| Frequency | Rare |
| Organization | Solitary |
| Activity Cycle | Any |
| Diet | Omnivore |
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The tremblers primary sense is its uncanny ability to detect motion. Inside the head, protected beneath the heavy armor carapace, is a specialized organ which is able to detect any motion nearby. This organ resides in the forward section of the brain case and is three times the size of the brain (the dwarves have managed to kill a few shakers and study their anatomy).
This motion sensing organ is extremely sensitive and has a range of about 100 yards. This organ can also detect the smallest vibrations in solid rock. Distant singing, laughing and digging (typical dwarf sounds) would not be heard by a shaker, but the beast might pick up on the subtle vibrations in the rock. While a shaker cannot hear conversation, it will easily home in on the movement of lips and tongue, the expansion and contraction of lungs, even the beating of a heart at close range (especially if the heart is pounding out of fear or exhaustion).
Obviously, invisibility is useless against this animal as is darkness, bright lights or any other form of visual phenomena. Sonic attacks and certain types of stun attacks (those that use sound waves, noise or vibration) will not effect a shaker, though the shaker might be able to detect such phenomena and home in on them. The best way to hide from a shaker is to stand absolutely still dont talk, dont even breathe and do your best to calm the beating of your heart. Only through hard experience have the races of the underworld learned to deal with this creature.
The beast gets its name from a peculiar habit. Once every few minutes the beast will cease motion and then vibrate its entire body. When the beast is "shaking", it is sending out vibrations into the stone which reflect back. The motion sensing organ is able to detect vibrations in solid objects and detect walls, floors, doors, etc. In this way, the beast can study the caverns around it and instinctually create a three dimensional map in its head. Usually, the beast will "shake" once every few minutes when it travels through caverns.
Shaking also allows the beast to find water and certain types of food because of the way they reflect vibrations (water vibrates different than stone, plant life tends to muffle vibrations).
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This page last updated Monday, October 08, 2007. Copyright 1990-2008 David M. Roomes.