But it was not until two nights later, when we had penetrated deep into the mountain fortress, that the change began to make itself felt.

"He was involved with the construction of the military mountain fortresses."

On 17 April 1942, he lowered himself down the cliff of the mountain fortress.

The man took me to his trophy room in the heart of his mountain fortress.

The day after their first unsuccessful attack, the German forces made another attempt at storming the mountain fortress.

The last remnant was finally forced to take shelter within this mighty mountain fortress.

Without pause he made his way down and into the corridors of the mountain fortress.

There are several other mountain fortresses that may be tied to this guy.

He went directly into the mountain fortress and is currently there.

Secure in their mountain fortresses, the Dwarfs didn't give it a second thought.