Tilium
It wasn't much of a little town last time they saw it. Tilium had most of the common features someone like Alba would associate with civilization (and someone like Fijero or just about any Fey other than Brownies would be nervous about): straight, paved streets, drains, neat rows of brick houses with perfectly aligned, parallel walls. It was small- maybe a few hundred people lived here- but its was very organized. The main street goes straight through the middle of it, and although the Brownies did take a few sidestreets, no one had any real time for exploring. There was a city to save!
But Alba, Togo, and Vinto do remember a few things. They remember the little square in the middle of the town. They remember the mill on the side. They remember how Tilium had no wall around it- evidently, the people thought they were safe enough without it. They must have been wrong.
They remember how the village was in such a good position to be a northern outpost for Namnates that it was quite a wonder the Huns had left it completely unoccupied. But no one had really thought about that at the moment. They had simply assumed that as close to the forest as it was, and the ever present danger of the Fey, the Huns must have decided Tilium was too vulnerable, and just not worth holding.
They remember that the houses were in very good shape here. So good that the Treants actually tore a couple of small dwellings down, to gather bricks to use as missiles.
They don't remember any of the Treants coming back to repair one of those little houses. Why would they? What do Treants know of building with bricks.
They are quite certain the Treants took bricks from two little houses, breaking down walls on both. But only one is torn down now. The other looks... fine.