Stone Slide
(Races of Faerun, page 169, DnD 3.0)
[General]
You have attuned yourself to stone to such an extent that you can merge with it for a short time.
Prerequisite
Base Fortitude save +4, earth genasi
Benefit
Instead of using your spell-like ability to pass without trace, you may instead meld into stone as a 5th-level druid. This uses your ability to pass without trace for the day.