Resolved Flame Orb

I checked some leveling guides and spell descriptions on the windia forums and couldn't find a solution. Forgive me, this is my first time playing Maple Story, and I am not familiar with the jobs available. But I seem to be missing one of my spells for Fire / Poison Magician. I have in my "Tab Two" spells list: MP Eater, Meditation, Teleport, Slow, Poison Breath, and Fire Arrow. It stops at Fire Arrow, and one leveling guide says I should also have Flame Orb. I have scrolled up and down the spell list two dozen times and I don't have the spell. I'm now level 78 and the grind is so very slow having all single target spells. Am I missing something on attaining Flame Orb? Is this a bug / glitch?