Much time has passed since the plants had been brought to the Indoor Garden. In that time, the vines had grown considerably sturdier and longer.

Almost lazily, a few of those vines were now unfurling and extending in various directions across the Common Room. This might seem puzzling and even entertaining to a few Hufflepuffs. The vines seemed harmless as they brushed innocently against students’ ankles.

But then...

GRAB!

A few ankles were taken a hold of.

CHOMP!

One vine wrapped itself around a wooden chair to crush it into pieces, fitting enough to be used as firewood.

What could have caused such frightening behaviour?