Book 2. Travis Fletcher was an arrogant, brash, chauvinistic product of 1980's Britain. After being critically injured in a train crash that killed his family he is rescued by the enigmatic Xi Scorpii. A rare gene he carried was needed to reverse their genetic sterility but ancient enemies of the Xi Scorpii returned to throw them back into a war that ended thousands of years ago. After the battle for Otoch, Travis finds himself alone on the ship that was supposed to take him back to Earth. Travis has to come to terms with his solitude and grapple with technology beyond his understanding just to stay sane, never mind to stay alive. Travis makes a promise to a distant relation to the Xi Scorpii that means they will have to turn their new home into a fully functioning warship, find a crew of warriors and learn to be warriors themselves. New alliances are forged, new enemies are made and the dangerous and unpredictable Cat has her own voyage of discovery to make - into her past.

Book 4. Set 20 years after When the Bow Breaks, Travis is now a confident warship commander and mercenary. The Arrow has a full complement of crew and has been intervening in interplanetary wars and disputes, making the crew very rich. His telepathic abilities now rival or even surpass those of Xnuk Ek', his teacher and lover. It is now time to take The Arrow and its crew on its most dangerous mission yet, and deliver a message from the Hunab Ku to the people of Earth... but things are never that simple. What will Earth make of their first interstellar visitors? How can Travis convince the most paranoid and xenophobic planet in the galaxy to listen to what he has to say? He is still haunted by his breakdown and birth of his alter ego at Spesota, and this is made worse when Xnuk Ek's dreams of her own death return. The conclusion of The Travis Fletcher Chronicles brings the story full circle to the beginning of The Archer's Paradox.

It's the beginning of a new year and Petra is back after her breakdown with more questions than answers. She has been unable to find out who she is or who she was before she woke up in a hospital bed with amnesia or why she needs so many drugs to keep her alive. Why is there a second entity in her head and why did it try to turn her into a psychotic killer? For the moment though, Petra has more important things to worry about. One of her new friends is being abused and the discovery has disastrous consequences for Petra. A near death experience on holiday unexpectedly uncovers some of her past and results in a holiday romance. Her relationship with Jenny becomes more complicated. Inspector Fransson is still searching for his elusive serial killer. Why were two French Gentek scientists murdered and where is their daughter? Why did their German colleagues disappear, only to reappear in England as University Professors? Where is Petter Ulfson, his prime suspect, and who is Petra Connell?

Petra's memories have returned. The realisation that she was once a little girl called Mireille who was murdered by a serial killer has tipped her over the edge. After trying to kill Jenny and blowing herself up, she is now lying in a coma she is unlikely to wake up from. The second entity in her head now has the upper hand and he is slowly erasing Petra's existence while she lies helpless. Jenny, Jackie and Sophie find Petra where her guardians have taken her. The Schumachers prepare the three friends for the worst, but the Musketeers do not give up on Petra that easily. They must confront the evil entity of Petter Ulfson and expel him from Petra's mind. But if they are successful, who will wake up? Petra Connell, who had finally admitted her feelings for Jenny, or Mireille Bouchard, Petter Ulfson's final victim? Chief Inspector Fransson still has no clue as to where his serial killer has disappeared to, or the body of Mireille Bouchard but he knows Petra is the key.

Petra is fifteen years old and it's her first day at school, any school. She is at least five years ahead of anyone her age academically, she can speak at least three languages, but has no memories before waking up in a hospital bed with terrible head injuries. She had been in a coma for three years after a tragic accident that killed her parents, or so she believes. Two years later she is making her first foray into the real world. In addition to the terrors of trying to make friends, dealing with her sexuality and the school bully, she has to fit into a world she does not understand. She needs a cocktail of drugs every day to keep her alive and there is the second consciousness in her head who invades her dreams and is slowly gaining a foothold in her waking state. All she wants is to be a normal teenager, but her alter ego has other ideas. Who was Petra? What is Gentek? What connection does Petra have to a serial killer being sought by the Swedish police? Her guardians know more than they are telling.

Percy Jackson isn't expecting freshman orientation to be any fun. But when a mysterious mortal acquaintance appears on campus, followed by demon cheerleaders, things quickly move from bad to diabolical. In this latest installment of the blockbuster series, time is running out as war between the Olympians and the evil Titan lord Kronos draws near.