"Stir slowly, gradually add lacewings...I said GRADUALLY Neville!!" Ron hissed, as Neville dumped the whole bottle into the cauldron. Neville
whimpered. "Sorry..." he whispered fearfully. Ron gave him a murderous glare, but continued.

"Add one half cup of pordered bicorn horn, then wait untill mixture boils."

Neville quietly dumped the powder into the caldron, then watched as it quickly dissolved.

"Is it boiling yet?"

Neville nodded feverantly and glanced nervously around the room for Snape.

"OK, this part looks tricky. Here, Neville, back off for a second, I'll do it."

Ron aproached catiously, but Neville had caught sight of Snape heading their way. He dashed backwards and stumbled on the table, knocking a
silvery vial out of Ron's hands and causeing it to go splashing into the cauldron.

The whole room gasped and Snape screeched, "Get back!"

The class ducked under chairs and tables, and Malfoy rushed under Snape's desk. But Ron and Neville were still tangled in a knot by the
cauldron. The potion frothed dangerously.

Neville wailed loudly, and wormed his way out. Running for the door, he realized to late that Ron was left behind.

The potion exploded.