Interacting with the music box triggers an encounter where you will get caught as part of the story.

For detailed visual help, you can check the Silver Chains Full Walkthrough or the text-based Achievement Guide on Steam.

Triggered after picking up a photo piece using the monocle. Hide in the closet in the same room. Secret room

If you are being chased or hear her coming, hide inside closets immediately. Wait until the music stops before coming back out.

A girl will point you toward a closet; hide there immediately.

To progress, you need to collect specific items and solve environmental puzzles:

When you hear unsettling music start to play, it means the Mother is nearby.

You must collect all amulets (like Timmy's Ball) and aconite plants to progress the story and reach the final encounter.