This magical item is a cube of translucent glass that allows the owner to create a wall of protective force in a 10x10x10 cube around itself that moves around so long as charges remain. The cube replenishes all 36 charges with each sunrise. Charges are expended at different rates depending on the type of protection chosen or when damage is done to the cube.
The operator points one of the six faces towards the sun to activate the type of protective force according to the following table. Charges drain from the cube on activation and then every following minute in increments of one minute. And while the cube is active, the holder’s speed of movement (by any means) is limited.
| Face | Charge/Minute | Max Speed | Blocks |
|---|---|---|---|
| 1 | 1 | 30′ | Gasses, wind, etc |
| 2 | 2 | 20′ | Non-living matter |
| 3 | 3 | 15′ | Living matter |
| 4 | 4 | 10′ | Magic |
| 5 | 6 | 10′ | Everything |
| 6 | 0 | Normal | Nothing |
Any damage blocked by the cube that exceeds 30 drains the charges at a rate of 1 charge for every 10 points of damage. That is, with face 2 active, a hurled boulder doing 35 points of damage will drain one charge to cover the excess 5 damage. Additionally, certain spells drain charges directly, as listed in the table below.
| Attack | Charges |
|---|---|
| Horn of blasting | 6 |
| Wall of fire | 2 |
| Passwall | 3 |
| Disintegrate | 6 |
| Phase door | 5 |
| Prismatic spray | 7 |
| Catapult-like missiles | 1 |
| Very hot normal fire | 2 |
| Fireball | 3 |
| Lightning Bolt | 4 |
Miscellany
- The edges of the cube are plainly seen even though the walls are translucent.
- The walls of the cube block in both directions.
- The cube can float.
- If blocking gas, anyone inside might suffocate.
- The lightning bolt spell is magic that could be blocked.
- Fire is not matter.
- The cube weighs nothing and is not anchored except by the weight and friction of the wielder’s feet on the surface below the cube. The cube can be shoved or even picked up if blocking matter.
- When activated, if the cube cannot expand to full size, such as being activated inside a 5’x5′ tunnel, the cube deactivates but still burns the appropriate charges.
- At full size, the cube may accommodate nine human-sized beings.