Crossing hard ground left no damning tracks in the lighted surface world, but nearly all of the creatures of the Underdark possessed infravision, the ability to see in the infrared spectrum.

• 在光明的地表世界上，踏过坚硬的地面并不会留下该死的足迹，但是，几乎所有幽暗地域的生物都拥有夜视能力，能够以红外线观察这个世界。