31: Astral Plains (decided to only go with the first half of the prompt)

Happy Halloween!
And just like that, it´s the last entry again, huh? What will I do with all that free time now? (Kidding, I actually have a LOT to do for college starting soon. So I´m glad the challenge starts and ends before that really goes into full swing... ^^')

Did any of you see/play that little Halloween-game Google had for the 31.? You are a wizard cat and fight ghosts in space. It´s very cute. The protagonist is such a creature. It inspired me and it matched the prompt, so I drew the second level.
Lower half is drawn with markers, upper half with watercolors.

30: Idle Portal

Admittedly, a bit of a shitpost, in terms of "trying to learn how to draw environments". xD
But anyways, here´s the Nether-portal in Minecraft, as it is traditionally built in a more or less completely empty world in creative mode that was loaded for no other reason than to impress siblings/friends with the fact you know how to do this. Or at least that was my experience playing Minecraft with my brother in our early teens. (He went a lot more strategic about playing this game than me.)

In sincerely hope no one is walking through the gate at the same time someone else is touching the smaller round altar.

If I remember the series correctly, nobody touching this "altar" will be required. (Hence them installing the iris.)

Aaaaand here's your belated HB cake-let, Grey! 

Maybe it's an additional Baron for each x amount of time that should have passed -- in other words, maybe the time stop's not complete for the Baron, who's at the center of it?

Question about the crystal caves.  Aren't they the ones that are really really hot and have the funky humidity? 

Spoiler: show

https://en.wikipedia.org/wiki/Cave_of_the_Crystals

So are we sure your person is not a troll? or already deceased?  I bet the trolls would love the warmth and humidity..
I hope you don't mind, but that does give me a story idea..

Glad to have you back Dmeck!
Yes, I think those are the ones. I had read about the temperature, but not the humidity. Beautiful place, but being in there must suck...

And I don´t mind at all. I´m looking forward to reading it!

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29: Eldrich Forest

Is that a tree? Are any of those trees? I´d recommend to Emil to not look up, in any case. Just keep walking... And try not to touch anything.
(I was too tired to color this...)