Sins Past . The story arc "Sins Past" by
J. Michael Straczynski reveals that
Peter Parker's girlfriend
Gwen Stacy became pregnant with twins, a boy and a girl, to whom she gave birth to while in
France. Gwen vowed to raise the twins with Peter and refused to allow
Norman Osborn /
Green Goblin access to them, who in the present claimed the children were his, borne of a supposed affair with Gwen. Seeing Gwen as a threat to his potential heirs, the Green Goblin
killed Gwen. Norman then raised Gwen's two children, a boy named Gabriel and a girl named Sarah. Due to Norman's enhanced blood, the twins age about 2-3 times faster than normal and are adults within the span of a few years (speculated to be between five and nine years old). Osborn tells the twins that Peter is their father and was responsible for their mother's death. Gabriel and Sarah then attack
Spider-Man, and Spider-Man subsequently deduces their true identities thanks to a note they sent that had been written by Gwen while in Paris. Seeking to confirm it, Peter goes to Gwen's grave and digs up a sample of Gwen's
DNA to compare to the twin's DNA which was obtained from the letter's envelope. Peter tells
Mary Jane Watson about the initial encounter with Gabriel and Sarah, whereupon Mary Jane reveals of knowing about Norman's involvement with Gwen and tells all to Peter. Mary Jane has kept it from Peter all these years because Gwen was distraught and begged Mary Jane not to say anything, as well as not wanting to taint Peter's memory of the only woman Peter ever loved as much as — if not more than — Mary Jane. With their metabolisms out of control due to the Goblin formula within their metabolism, Gabriel returns to a secret base that Osborn told them to travel to after they had completed their mission. He takes more Goblin formula, becoming the
Gray Goblin. This stabilized his aging at the cost of his sanity. Meanwhile, Sarah is taken to a hospital and given a transfusion of Spider-Man's blood. Spider-Man's abnormal blood also serving to stabilize her condition, both physically and mentally. When the Goblin tries to attack the weakened Spider-Man, Sarah shoots the Goblin's glider, recognizing that Spider-Man is not responsible for their mother's death, causing an explosion that results in her brother vanishing. Gabriel is later found washed up on a beach with no memory of what happened.
Sins Remembered A follow-up story titled "Sins Remembered" was written by
Samm Barnes with art by
Scot Eaton. Peter locates Sarah in
Paris, where Sarah has her brother Gabriel restrained in her home. With the help of Spider-Man and
Interpol, Sarah helps build a case against the criminal Monsieur Dupres in exchange for Interpol's help with her rapid aging, which is causing her and Gabriel severe headaches. However, Gabriel escapes, prompting Sarah to join Interpol in hopes of finding her brother. This
story arc was later collected as a
trade paperback in 2005 as
The Spectacular Spider-Man vol. 5: Sins Remembered (). Straczynski ultimately wished to
retcon the characters out of existence using the events of the "
One More Day" story arc, but was not permitted to do so. Spider-Man reacts while confronting the villain
Menace by saying there's "enough problems without yet another Gray Goblin to deal with". During the "
Dark Reign" storyline,
Molecule Man's torment of the
Dark Avengers includes Osborn hallucinating a pregnant Gwen about to be killed, and one of Norman's male Super Soldier test subjects is identified as "G. Stacy".
Gabriel: American Son II Gabriel returns in the
American Son mini-series as the second version of
American Son. He introduces himself to
Harry Osborn (later known as Harry Lyman), then shoots him in the chest. American Son appears and saves Harry. After his attempt on Harry's life, Gabriel confronts the American Son battlesuit and demands to know why American Son interfered. It is subsequently revealed that Gabriel has stolen the American Son armor and is now suffering from a split personality, committing crimes as himself while American Son undoes the damage he has caused, identifying itself as the part of Gabriel that recognizes that what he is doing is wrong. Gabriel hears a planned ambush by a police squad and proceeds to attack; before he can do any real damage, however, he is stopped by Spider-Man. After kidnapping reporter
Norah Winters and luring Harry to a vacant warehouse, Gabriel makes another attempt on Harry's life. While locked in combat, the two discuss their respective views of their father. Harry attempts to convince Gabriel that their father is an evil monster who only craves death and power while Gabriel tells Harry that his half-brother's a waste of the Osborn bloodline. Saddened by the inability to reach Gabriel, Harry hacks into the American Son armor and quickly overpowers Gabriel. After Gabriel is defeated, the warehouse is set on fire and he and Harry are saved by Spider-Man and a police squad. Following his capture, Gabriel is placed in a psychiatric hospital, and informed that the American Son suit is thought to be destroyed. However, a package is soon delivered to his room containing the American Son helmet and a note from his father telling him of loving Gabriel and missing his son.
Return as Kindred and new origin An apparent demon going by the name of
Kindred picks
Mysterio to assist him in carrying out a plan of retaliation against Peter Parker, whom Kindred held accountable for an unpardonable sin. When Kindred meets with
Norman Osborn in
Ravencroft, Norman's Cletus Kasady persona states to Kindred that he has a message for him from Norman, who states that he is proud of him. Norman claims to the clone of
Ashley Kafka that Kindred is his son. When Kindred reveals itself to Peter, it has the face of Harry Osborn. Kindred torments Peter by showing him the corpses of his dead friends and family, putting Peter's soul through the reenactment of Harry's return, and killing him over and over again as Peter experiences flashbacks to better times with his friends. Norman captures Kindred and speaks to it, believing it to be Harry. Planning to redeem the Osborn name, Norman states to Kindred that he will find the truth that he talked about.
Carlie Cooper is asked to investigate the corpses dug up by Kindred, and is particularly horrified on uncovering an extra one. At that moment she is captured by Kindred. Carlie is imprisoned alongside a non-demonized Harry Lyman, who tells her that they have no chance of escape. Carlie learns from Harry that he was lured to Europe by Kindred after following a trail of transactions from several dormant
Oscorp bank accounts. Arriving at one of his father's former real estate holdings, Harry was attacked and captured by Kindred. Unbeknownst to Harry, Carlie is hiding that the corpse she discovered in the morgue was that of Harry Osborn. Harry suddenly notices that the door to their cell is open and suggests there is a way to escape. Flashbacks dating back to Harry's childhood reveal that the cause of most of his personal problems, from addiction to insanity, comes from him having a tortured soul which Norman traded to Mephisto in exchange for a more prosperous quality of life, which Norman had been struggling to provide for him and his son. Norman is reminded of these deeds when he visits the house in Europe, discovering two cloning pods as well as an old
artificial intelligence unit which houses Harry's brain waves. This version of Harry taunts his father. The A.I. Harry reveals to his father that his half-siblings Gabriel and Sarah Stacy are not in reality Norman's children, and that he never had an intimate relationship with Gwen Stacy. Sarah and Gabriel were part of a major cloning conspiracy orchestrated by him, Mysterio,
Mendel Stromm, and the
Chameleon. Several versions of the twins were created, but each died from cellular degeneration. When the latest models were perfected, they were sent out into the world to confront Peter. Gabriel had one further model created that became involved in the
American Son storyline. Now both twins have become host bodies for the AI Harry, which is why they have been taking Harry's form and have his memories, and it is revealed there were two Kindreds all along. Harry Lyman, uncovering his own body, confesses to Carlie that he knew all along he was never the true Harry. Harry escapes, but heads back to Kindred's base to confront him. ==Powers and abilities==