This spell is initially cast upon a special gem known as a roguestone. The roguestone is enchanted in the process of the spell and is not destroyed in the initial casting or subsequent activation of the spell. At any time afterward, by uttering a command word, the caster can immediately teleport to the location of the gem. The teleport will always be on target (never high or low). If the area the gem is in is too confined, the caster will appear in the nearest sufficiently large space. This transport is one-way, and the spellcaster cannot jump back to his initial location by use of this spell.
The caster can use the roguestone to gemjump any time after the initial casting. There is no time limit, and the caster can be slain, resurrected, reincarnated, shapechanged, or become undead and still be able to use the roguestone to gemjump. Gemjumping requires only the uttering of a word, whether the caster is in chains or otherwise bound, or within a magical entrapment such as a force cage. The caster can be on a different plane or planet than the stone and still have it function correctly. The caster cannot use the command word if feebleminded, asleep, unconscious, petrified, paralyzed, or insane, nor will the gemjump operate if the caster or the roguestone is within an antimagic shell. Only the caster and his normal clothing will be so transported, any chains, equipment, and allies will be left behind.
The roguestone itself radiates no detectable magical energy unless it is in the process of gemjumping'. Multiple gemjumps can be cast on a single roguestone by separate wizards. These additional spells do not negate the previous gemjumps on the roguestone. A limited wish will reveal the number (though not the identity) of gemjumps cast on a roguestone. Only a full wish will dispel those magics on a roguestone. Physical destruction of the roguestone will also destroy the magic, though spellcasters who have links with a roguestone will be aware of its destruction. The roguestone saves as rock crystal.
Notes: Uncommon spell. Known to be in Elminster's Traveling Spellbook.