[1] In an interview with ThirstforFiction on the publication day, d'Lacey stated that Fire World would be set in an alternate universe, and that all of the recurring characters from the previous novels would return, but in different guises.
[2] It opens on the planet Co:pern:ica with Counsellor Strømberg (an auma counselor) talking to professor Haran Merriman and his wife Eliza, and then their son David walks in.
The dream is very strange and David has been visited by Firebirds (one of only the two creatures that live on Co:pern:ica) and they are seen blowing their special fire over him.
Whilst Harlan is at work at the Ragnar Institution of Physics, he brings in data from the research on David and asks his partner Bernard to put the information into SETH, which we are led to believe is some sort of supercomputer.
Strømberg suggests sending David to a librarium, which is a huge building going up past the clouds to be tutored by Charles Henry and have an 'adventure'.
Mr Henry says they must work hard to be able to access the secrets of the upper floors and it is revealed that there is a huge Firebird eyrie up there.
The rain then becomes very strange as it is driving Eliza away, although when the drops fall on the ground they recreate images of dragons (long since died out on Co:pern:ica).
Aurielle thinks about these things as she flies back to her perch and looks at a woven tapestry that she likes, depicting the last scene of Dark Fire, where there are dragons, humans, the ix and darklings.
She explains that she is taking Harlan away and that Eliza has called for David to be released and brought back, where she and his sister are waiting for him.
When Penny is ready, David goes up and starts reading Alicia in the Land of Wonder to her, imagineering the story with her so that the characters come to life.
They talk some more and Strømberg is impressed that David and Rosa managed to get to the upper floors, whilst Stromberg and Mr Henry had tried for 20 years and failed.
Strømberg is confused, and then David tells him that when he slowed the video down of the experiment, he believes something came through and infected a normal fire bird and turned it black.
The men give them clothes and they decide to travel to the Isle of Alavon where there is a settlement of twenty two people including Harlan and Bernard.
Harlan then comes up with a plan to get everyone back to Co:pern:ica so that he can protect David, by turning the tower of Agawin into a massive beacon.
Landing on the window sill, the darkling prepares to take over Aurielle's body, but then gets seen and the fire birds question whether it is really Aubrey.
Before he is finished though a time rift suddenly appears and the Ix within Gwyneth (still posing as a cat) come to attack and attempt to kill David.
However Rosa manages to convince David to stay on the floor long enough for them to find the tapestry on the large table in the room.
The book is apparently split into several sections: The Flight of Gideon, The Battle of Isenfier, The Isle of Alavon, and The Ark of Co:pern:ica.
The Ark was created during the Great Re:duction that formed the dead lands to protect all of the animals and wildlife of Co:pern:ica.
When she is told that Gwyneth may be still alive due to what she wrote on the boat with the claw before she died, Rosa proceeds to ensure her death by attempting to drive a wooden stake through her.
It is here when in great detail Harlan explains to David of the Battle in the Dead Lands between him, Bernard, Lefar and the rest of his tribe against the Re:movers.
David proposed that they should have the help of the firebird to distribute books to all the people of Co:pern:ica ( especially those uses boats to get close to the work of wonder ).
Eventually everyone in the Ark gather around a table on the deck where David intends to discuss and explain more about things that circle around the Tapestry on floor 108.
David says that Gadzooks basically froze the battle in a critical point when it apparently seemed to be swinging in the favour of the Ix.
This then causes the picture of Gwyneth (and a strange boy) to appear on the Tapestry and David to slowly move towards the Shadow of the Ix.
Whilst coming back down, David finds the Isenfier tapestry has changed and Gwyneth/Gwilanna has survived and is on Scuffenbury hill, smiling.
After David leaves to return to the library she promises to keep reading Alicia in the Land of Wonder to Penny, stating that it will be less trouble and scary.
After the time quake, Rosa and David find him dead in his office and it is later shown that he died of natural causes instead of ageing.
When he lived in Co:pern:ica central he worked with designing maps, and by asking too many questions in the wrong places, stumbled across things he should not have.
When Harlan plans to destroy a Re:mover, Lefarr offers to be the bait as he knows the marshes the best and is the youngest and fittest of the group.