[sblock=OOC]Strahd, I make it 680 ft from Eliyadd to the invisible mage. Therefore, if he moves his full speed (30 ft) to L148, he will be 650 ft from the mage and his fireball - yes, he is going to cast Fireball - will detonate 10 ft this side of the enemy. Since its area of effect is a 20 ft radius spread, it should catch him.[/sblock]
Eliyyad shakes his head and says to Zariq, "You see, little one, how pride comes before a fall. Had he not made a point of drawing attention to himself, he would not have got ... burnt."
The sorcerer's fingers have been digging into his spell pouch as he speaks, and at the last word he flicks a small, smelly ball towards the spot where the enemy mage stood, accompanying it with a rapid flourish of his fingers and a single, sharp syllable like the screech of suddenly melting glass. The resultant magical energy flies swiftly and surely to a point of blossoming flame just in front of his opponent. The fwump of its explosion reaches the party a split second after they see it, then is magnified in opposing echoes.