A Boggart.....
A boggart hates laughter,
A boggart loves fear,
A boggart is everything and anything you fear,
Whether a Banshee, severed hand, Dementor or not,
You see it as your dreaded fear,
That haunts your worst nightmare.
There's a great way to defeat it,
A group or on you're own,
That is to shout Riddikulus, and laugh a hearty laugh.
When all things are Dark and Dreary, Just remember this,
What happened when Neville put snape in his Granny's Dress