This is my take on what might have happen after The FNaF Book:The Twisted Ones. It's a real good book btw you should seriously consider reading.

Watch as our brimstone witch gets accustomed to her new life after she had been saved by our hero while the sun has setted and the new moon had risen behind the mountains... Halloween had just begun as the city folks began celebrating their first spooky holiday after the defeat of the mighty tyrant. This is my rendition of the calamity mod and is not canon in the slightest. Book cover is not owned by me. Andrew Spinks and Re-Logic Team own Terraria and the Calamity Mod is owned by their respective modders. Music, soundtracks, and images used are not owned by me. It serves for entertainment purposes only, no profit is made even without the use of these copyrighted materials. This fanfiction is for entertainment. Link to the cover's artist: https://www.deviantart.com/corrupted-ciphers

The planet 4546B - it was originally thought the Aurora, a spacecraft sent to the Ariadne Arm by the Alterra Corporation was the first ship with humans to land on this planet but, there was a another ship. Before the Aurora, before the Degasi, a crash that Alterra scrambled to cover up and is now all but forgotten: the Crystalline Princess. But in the 16 years since the cover up, the survivors of the Crystalline Princess have come far. And now that Alterra has become interested again in 4546B their paths meet again, which causes more than just feelings to rise up... But to come to that point you must see what they endured. This book shows the view of the two captains of the Crystalline Princess and what they did to survive. ~(!THIS IS AN UNOFFICIAL FANMADE STORY I DO NOT OWN ANY OF THE FAUNA AND FLUARA, LORE OR CHARACTERS THAT IS IN SUBNAUTICA OR SUBNAUTICA BELOW ZERO!)~

There comes a time in Al-ans life when he meets a strange small. SMALL. being named after a weird small bird. At first he disliked the small bird named weird creature but soon grown close and this meeting has changed his life forever. Oh yeah did I mention that this bird might melt this metallic cold heart of this Alien? ¤■□□□ □□□■¤ By the way, this is a Story that was made/thought of before all of the updates and will probably stay this way. I made my own assumptions for the game's story and such so its going to be quite different from the actual game and canon storyline and such. It will not be be exactly like the game or according to the new storyline. So just a heads up! <3