A geas spell places a magical command upon the creature (usually human or humanoid) to carry out some service, or refrain from some action or course of activity, as desired by the spell caster. The creature must be intelligent, conscious, and under its own volition. While a geas cannot compel a creature to kill itself, or to perform acts which are likely to result in certain death, it can cause almost any other course of action. The spell causes the geased creature to follow the instructions until the geas is completed. Failure to do so will cause the creature to grow sick and die within 1 to 4 weeks. Deviation from or twisting of the instructions causes corresponding loss of strength points until the deviation ceases. A geas can be done away with by a wish spell, but a dispel magic or remove curse will not negate it. Your referee will instruct you as to any additional details of a geas, for its casting and fulfillment are tricky, and an improperly cast geas is null and void immediately (cf. wish).