We continue our adventure in the location - Plains of Hellscape - with the quest Infernal Invasion.
This is not Diggy's first rodeo in the underworld, so the inhabitants better bring their A-Game!

Collect 3 steaks in the corners of the accessible area. Once you have all 3 you can guide the Hellhound to the cattle.
Place the steaks on the stones in this order:

Once the doggo scared the cattle away, pull the levers to close them in.
The path has been freed, and you have a few encounters. All of them end up as piles of ash.
Now you get to the crossroads and have to enter the four pits to defeat the baddies there.

Once you finish a pit, the eyes will no longer shine from it.
UPPER LEFT - ZOMBIES 🧠
To defeat them you need to drop something heavy on them - maybe rocks?
UPPER RIGHT - GREMLINS 💡
Gremlins are terrifying to look at, but not very smart, you can easily drag mirrors in front of them, and they won´t even jump away from the light. Here is where you can place the mirrors to give them a really strong tan.

LOWER RIGHT - RABBITS 🐇🥕
If you think bunnies are not scary, you better think twice!

Collect the 3 carrots in previous areas, one is also found with the gremlins.
Place them on the spikes, where you will trap the bunnies.
LOWER LEFT - VAMPIRES 🦷 🧛
Vampire slaying is by now your second nature. You will easily defeat the 3 fanged enemies.
We have reached the End Boss!

Demons can be destroyed by blue light, but this one is too big.
The power is channelled by red crystal pillars we need to destroy them!!!
Collect the 4 stakes, and destroy the remaining vamps

To destroy the towers place the cannonball in front of the cannon.

Once all towers are destroyed setup the laser this way to defeat the boss.

The last task is to seal off the pit. This will be done by shining all 4 lights on the receivers. Fluffy is relieved once the seal is active, and she looks forward to shifting her focus on high school drama only.
You finished the story, congratulations!!!