I've tried to obtain 'Last one! Where's the cake?' over the past month.
I followed YouTube guides to check if I found all the bobbleheads however that wasn't the problem.

The problem is that the achievement is bugged.

And to obtain this achievement, you will have to use a weird method.

On every playthrough I would get to a Bobblehead which when picked up - didn't play the earrape sound you get for collecting the bobblehead. And when I checked the stats in the journal the Bobblehead didn't add to the count of total Bobbleheads collected. (I played through Lucius 3 around 6 times with the same result).

This bugged Bobblehead is found next to Fabius in the Dante manor, in a place where Fabius had the family dagger in Lucius 1 on that exact table.

Yes I've reported this to SHIVER with screenshots and everything.

If THIS is happening to you I've found a way to obtain 'Last one! Where's the cake?'

In chapter 1, get dressed, eat breakfast like you normally would



Once you are outside, Fly or walk toward the school.

NOTE: If you don't visit the 'Freeman house' first, the School loads a bit janky for the first time. This is because you are supposed to visit the Freemans before the school.
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Once you are at the school grab the Bobblehead behind the door that you came through.
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Then grab the Bobblehead on the shelf on the left side of the room.
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After you've collected the 2 bobbleheads,

You need to walk outside, down the stairs & open your journal.

Fast travel back to Mcguffins house.
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Once you arrive at Mcguffins house fast travel back to the school.

You'll see the same Bobbleheads have respawned in the school which you can fast travel back and forth to collect over and over again and it adds to the 'total' bobbleheads in your journal.

I done this a couple times maybe 10 mins max and the achievement popped!

As I said the achievement is bugged and so is the way to obtain the achievement.

I'm guessing the game doesn't care 'WHICH' bobbleheads you find, but 'HOW MANY' you find which is a bit weird, anyway!


NOTE: I recommend teleporting to 'Mcguffins house' instead of the 'Freeman house' because you need to fast travel a certain distance away from the 'School' to respawn the bobbleheads.

'Mcguffins house' to 'School' has always worked for me.

Hope this guide helps others with their Lucius 3 achievements :)