This powerful spell enables the caster to bring into being a cube of force, but it is unlike the magic item of that name in one important respect: The forcecage does not have solid walls of force; it has alternating bands of force with 2’ gaps between. Thus, it is truly a cage rather than an enclosed space with solid walls. Creatures within the area of effect of the dweomer are caught and contained unless they are able to pass through the openings — and of course all spells and breath ‘weapons can pass through the gaps in the bars of force of the forcecage. Furthermore, creatures with a magic resistance can apply that resistance in a single attempt to pass through the walls of the cage. If resistance fails, then the creature in question is caged. Regardless of success, any and all other creatures also in the area of effect of the spell are trapped unless they also have magic resistance which allows them to escape. The forcecage is also unlike the solid-walled protective device, cube of force, in that it can be gotten rid of only by means of a dispel magic spell or by expiration of the dweomer. By means of special preparation at the time of memorization, a force- cage spell can be altered to a forcecube spell. Forcecube has one- eighth the area of effect (a cube 1” on a side), and the dweomer then resembles the magic of a cube of force in all respects except for the differences between a cast spell and the magic of a device, including the methods of defeating its power. Although the actual casting of either application of the spell requires no material component, the study of the spell required to commit it to memory does demand that the magic-user powder a diamond of at least 1,000 gp value, using the diamond dust to trace the outlines of the cage or cube he or she desires to create via spell casting at some later time. Thus, in memorization, the diamond dust is employed and expended, for upon completion of study, the magic-user must then toss the dust into the air and it will disappear.