しかし城にたどりつくなり、近衛兵を率いた人によって、わたしはこの牢獄に勾引されてしまった。

However, when I finally reached the castle I was thrown into this prison by the commander of the imperial guard.

屋根の勾配をどうするか決めるのはとても重要です。

It is very important to decide what to do about the slope of the roof.

山越えの道は狭く、しかも急勾配だった。

The road across the mountain was narrow, and what's more, it was a steep slope.