Quest Improvement: Sneaking Past Farmer In Tunnel Trouble

Hi,

So I was playing Wynncraft a long time ago and recently I tried to give it a go again. So I created a new character, an assassin, to discover again the game.

Here I am, doing the Tunnel Trouble quest with my level 11 assassin. I am needed to sneak past a farmer in order to free some cow, but here is the deal. Any other class would just not walk in front of him, but I am a well-trained assassin.

Why can't I just walk in front of him while vanished? I can't post a full link because I don't have 10 posts but here is a record of it: streamable [dot] com/r1v39

This is a huge issue in my opinion.
Just kidding. Would be a good improvement but not game-breaker at all.

 

farmer bylvis has infrared vision
/s

 

He can hear your footsteps? I’m not sure.

 

Wait so you're asking for a way of skipping the puzzle using vanish?