There are 31 sigils to be found, and 3 achievements related to this.

Health Inspector - Find your first sigil.

Apprentice - Find half of the sigils (16).

True Herbalist - Find all the sigils (31).

There is a sigil in every scene in the game except for Underground Passage(when you have to fix the lantern) and dungeon rooms (while finding the correct path).

The butterflies are found in many scenes, you just have to scare(click) in 6 (different) of them to get the achievement.

Entomophobia - Scare 6 butterflies

You can see below in the screenshots, every sigil with a red circle and the butterflies that i found with a yellow circle.































- butterfly here!










- butterflies here!




















- butterfly here!










- butterflies here!










- butterfly here!




















- butterfly here!






























- butterfly here!










- butterfly here!











































































































































































And that is all Folks.
I hope you get your achievements, for any doubt just call me, I already finished the game and got them all! ;)