Percival Shacklehorn's tent

"Yep, this is a wizard tent, alright. Larger on the inside, of course."

- Mathilda Grimblehawk

Percival Shacklehorn, a wizard who went on expeditions to hunt magical creatures, owned a tent charmed to be larger on the inside than it appears to be on the outside.

Returning from the Alps, he inadvertently transported a Mountain Troll who had sneaked into his tent to the Leaky Cauldron, in London.