h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

However, their embrace was shortlived, as at that moment the Evil Witch burst through the door and blasted Mavis with spamballs.
Do you think you could use inverted commas when a character is speaking?

*the prince valiently threw himself infront of the spamballs and was spammed into the floor, where he lay quivering as Mavis screamed,"No!"

Mavis charged the witch, but the with teleported three metres to the left and Mavis crashed thought the wall to land in the highly stagnant, pirahnha filled-moat.

As Mavis flounders in the moat, the piranahs swarm her, she starts flailing around vilently while throwing as many of the piranahs as she can at the witch with her trunk.

And the Archduchess chose that exact moment to assault the castle and carry Joseph into the lands of darkness.
This is a story, so in future could you have any actions taking place in the past tense?

righty oh

Mavis, in a sudden rush of adrenaline, leapt from the water and threw all the piranahs attached to her onto the Aech Duchess Dusledorf.

They roll around on the floor slapping and scratching
"Oh Mavis I didn't know you cared" said the Duchess

I don't!, she screamed before she threw herself on top of the evil Arch Duchess.

And the witch enveloped them both in fire.

"Where are the fire extinguishers" yelled the King

"What's a fire extinguisher?" asked a servant.

"And why would you want to extinguish such a lovely fire as this?" askes another.