.. How to pass the monster in the old library

Is there something that can smash it?

The owl statue above the monster. You can push the owl statue.

You can't get past it because the stone slabs cause an echo and the monster hears it.

You need something soft to spread to stone slabs so the monster doesn't hear your steps.

You need a scarf.

You can find a scarf in the town from the stand and spread it on the stone slabs. Then go to owl statue and push it.