Wall of Fire Question

[Hex08]

I have a question about the spell Wall of Fire and the size of the wall. In the spell description it says:

"In both cases, the wall is 20 feet tall and only 1 foot thick. The fiery wall or curtain of fire measures up to 20 feet long per caster level (up to 100 ft long at 10th level)."

If the wall is 20 feet long per caster level at 10th level it would be 200 feet, in order to be 100 Feet long at 10th level it should have to be 10 feet long per caster level. Am I missing something or is there a misprint in the description?

[Boot Knife]

In this case, I would ignore the example in parenthesis. An immobile wall is 20 ft. tall and 20 ft./per level wide. A circle that follows the caster is 20 ft. tall and 10 ft. diameter per every 2 levels.

[Go0gleplex]

In this case, I would ignore the example in parenthesis. An immobile wall is 20 ft. tall and 20 ft./per level wide. A circle that follows the caster is 20 ft. tall and 10 ft. diameter per every 2 levels.

Second this.

[serleran]

Be creative. If you like the cap on length, allow width or height to continue to accrue. They likely intended to keep height and width static and then forgot to correct the length...

[Hex08]

Thanks for the feedback, I was inclined to ignore the example in parenthesis but one of my players was thoroughly confused by this so I figured others opinions would help.