[SPOILER] The best scares you missed.

[Hunter of Shadows]

A further hidden scare is the picture of Alexander in the study.
When you go back to the picture after you have picked up all the rods, his face is changed to a really scare face.

It has nothing to do with what you said, it's a sanity effect

But what do you mean about the hammer in level 1?
There is no hammer (except the tool item) and even not in level 1.

He's referring to the Northern Prison area, where you need to gather a hammer and chipper