Quite some time later, all activities within The Burrow wound down and each person returned to their own beds. A chorus of snoring filled the topmost room, where lay four boys, who appeared as deeply asleep as their snoring was volumous. However, at once, two of these came to a stop. Their owners opened their eyes and stared at the ceiling.
"Well George," said one.
"Yes Fred?" said the other.
"I think we can say the Mellow-Mallows are still safely within the testing-phase."
"Indeed."
They thought for a moment, considering their actions.
"They hardly even had an effect on that spat with Percy," said one.
"Yes, that was bad," said the other.
"And of course Mother is probably immune."
"Shame the same can't be said about the side-effects."
The twins fell silent. Their younger brother's snores punctuated the semi-darkness, as well as the soft breaths from Harry from the other corner. Fred grasped the large, rubber mouse he had under the blanket with him (and no, that's not a euphemism).
"Brilliant idea, though, mixing them in with the ice cream," said George.
"Yes. One of our finest."
The mouse let out a muted squeak.
"So what, Disaster Clean-Up Level Four?"
"I think Two ought to do… we noted memory loss during our trial, didn't we?"
"Indeed we did, that's a fair point."
Another moment passed.
"Do you wonder... what exactly happened during that trial?" said George.
Fred drew a tight-lipped grimace, both disturbed and amused.
"Let's not think about that, shall we?"
"No, let's not."
Another moment passed. It went without saying, as many things did between the twins, that they would forever hold this night in secret between themselves. If anyone were to find out about what had transpired, it would of course make the testing of all their toffees and snackboxes and other potential products quite impossible. So it was very important they leave no evidence behind for discovery. It'd be messy work, but progress often was.
Another moment.
They both took in breaths simultaneously.
"Right," they said, and got out of bed.