Finn

Finn is an Amazon descendant from the war-torn 21st century who joins the members of the Challenger expedition when one of George Challenger's inventions brings her from her chaotic time to 1922.

Early life
Finn was born in the early 2000s. Finn is the descendant of Ned Malone and the Amazon warrior Phoebe. Finn grew up on the plateau, named New Amazonia, during an apocalyptic time caused by the demon Zoth who escaped hell and caused a massive world war leaving only New Amazonia untouched by the war, until chemical warfare made its way onto the plateau. Finn's friends and family were betrayed by Finn's lover, Burke, and they were all killed save for Finn.

Joining the Challenger Expedition
After a confrontation with Burke, who plans on enslaving Finn, she meets George Challenger at an abandoned subway station and takes him prisoner. Challenger explains to Finn who he is and that he is from the past. Finn initially thinks he is lying, but she eventually escorts him outside where she meets Marguerite Krux and turns Challenger over to her. Finn then leaves and is attacked again by Burke, but Challenger and Marguerite arrive to help her. Finn decides to go with them to the past and she follows them to a cave where Challenger has an invention that brought them there. Once she arrives with them at the cave she meets John Roxton, but as the four of them prepare to go back in time, Burke arrives with a band of slavers and the explorers fight the slavers off and Finn kills Burke. The group then goes back in time but when they arrive in 1922 the cave collapses forcing them to abandon the invention, preventing further use. Once they arrive at the treehouse Finn takes her, then unknown, ancestor Ned Malone's room in the treehouse.

Hamilton's Expedition
While Marguerite and Roxton where exploring, Finn stayed and helped Challenger at the treehouse. A woman, Harper, arrived in panic at the treehouse, Finn and Challenger learned from Harper that she was part of professor Hamilton's expedition and they discovered a temple in a cave and that a demon started possessing the members until they started killing each other and she managed to escape. Finn and Challenger follow Harper to the campsite and find that Hamilton has killed professor Campbell, believing he was possessed by the demon, but it is revealed that Harper was and she passed the demon into Challenger. Hamilton purposely gets himself possessed to save Challenger. Finn and the others escape as a cave-in traps Hamilton, Harper, and the demon in the temple permanently.

Encounter with Zoth
Finn goes with the others to a cave that the others went to a year earlier and encountered a strange supernatural light. Once they arrive at the cave, they notice a face floating towards them, Finn recognizes the face being the same as Zoth, the demon who caused the chaos of Finn's original time. Finn escapes the cave and noticed 3 people exit the cave wearing the same clothes as Challenger, Roxton, and Marguerite. Finn is taken unconscious to the treehouse, when she awakes, the 3 people introduce themselves as "Kayle"(Zoth), Una, and Rixxel. Finn tells them that she knows who "Kayle" really is and she leaves to find a way to save her friends. Rixxel pursues and captures Finn. Finn tries to convince Rixxel that "Kayle" is really Zoth, and he will destroy mankind in the future. Zoth plans to take Finn to the cave and exchange her for Salamine, a plague demon. While Rixxel escorts Finn, following Zoth and Una to the cave, Finn finally convinces Rixxel of Zoth's evil and Rixxel frees Finn. Zoth kills Rixxel and flees with Una, Rixxel's body transforms into Roxton and Finn realizes that if she kills Zoth and Una, Challenger and Marguerite will be brought back from the dimension Zoth came from. At the cave entrance, Finn kills Una who transforms into Marguerite but Zoth enters the cave and returns to his dimension, switching places with Challenger. Finn expresses that she failed to prevent Zoth's apocalypse but Challenger assures her that if Zoth ever returns, they will atleast be prepared for him.

Challenger's Elixir
Challenger tries to invent a food substitute. The elixir causes Challenger to experience horrifying hallucinations. Finn is wrongfully accused of spying on Challenger's experiments and trespassing in his lab, and later after killing a velociraptor, Finn is threatened by an armed Challenger who storms off into the jungle. Finn sees Roxton and Marguerite showering together and in the awkward situation, she tells them about Challenger's behavior and they find Challenger dying in a cave. The only way to save him is by a blood transfusion but nobody knows his blood type, but Finn has a universal blood type and she uses her blood to save Challenger.

Meeting Veronica
Finn is helping Challenger on a hill. Challenger leaves to collect samples but says he will return and Finn stays to practice fighting moves. Finn worries because Challenger hasn't returned yet so she searches for him. While searching, Finn meets a hooded person and asks if she has seen Challenger. The person is really Veronica Layton who attacks Finn out of suspicion. After a short fight Finn realizes the woman is Veronica and tells her who she is, the 2 then continue searching for Challenger. They find an airplane and follow footprints to a campsite. At the campsite they find evidence such as radio parts but no radio and they infer that someone captured Challenger who offered to fix the radio at the treehouse. Once they arrive they discover that Lieutenant Drummond is holding the others hostage and they attack him and he angrily raises the radio and is struck and killed by lighting.

Mordren
Finn, Veronica, Roxton, and Marguerite discover a temple in the forest with a symbol on a pillar identical to the pendant Veronica's mother left her. Veronica puts the pendant against the pillar and falls unconscious after receiving a shock from the pillar. Finn stays with Veronica while the others go to find Challenger. Once Veronica wakes up she tells Finn of new memories that she repressed in which she witnessed her father killed by Mordren, after that her mother took her to Avalon to escape while Avatar warriors drove Mordren from the plateau. After Veronica told Finn what happened, Mordren arrives and tells Veronica that he plans to kill her and draw out her mother who still lives in Avalon, Finn attacks Mordren at the sound of this but he promptly knocks her unconscious. After waking up, Finn sees that Veronica has killed Mordren and discovered that the temple is the burial site of Veronica's father.