Jenna, as you already know, is Jessie's sister. Her history remains shrouded in mystery (except, once again, to Tipe, he being the silent observer he is). He parents first lived on Rith Espa with Jessie. Rith Espa was once home to its own culture. There were two main factions to the population; Those of the House and Home, and Those of the Stone. Overall, the Rith were a peaceful people, and saw no reason to go to war with anyone. But, then a war came to them. The dreaded day when a malevolent force would come to their planet, craving what the Rith had. They wrought havoc. Most of the Rith cities were left in ruins, as was the culture itself. Everyone disappeared off the face of the planet. Fortunately, someone warned Jessie's parents of a bad omen brewing, and they left three days before the war. The Donsnow family went to Dellalt, of the Sepan System. Rith Espa itself was left intact. Over a period of time, people from other planets came to Rith Espa, and repopulated. A few months later, Jenna was born. Her parents, following a harsh Rith practice that stated that a suffering family should 'forget' their oldest child if another is born, abandoned Jessie. They raised Jenna as a single child. She never knew she had a sister. There was no evidence in her house of Jessie's existence. Jenna's parents didn't want her to think of them as bad parents, so they tried as best they could to remove any records of her from their home and the city directory. The Donsnows would never learn what had become of Jessie. As Jenna got older, her intellect skyrocketed, and was perhaps the only person who got straight A+'s in school. On her 10th birthday, her father gave her a crystal pendant, and her mother gave her a gold bracelet. Needless to say, both have major sentimental value, and wouldn't be traded for anything (sans total global annihilation and other worst-case scenarios). A few weeks afterward, the Donsnows left Jenna in the care of a family friend, and went on a week-long cruise celebrating their anniversary. They never came back. A compartment on E-Deck exploded so badly that the ship was blown in half. It sank not more than a half-hour later. It is uncertain if the Donsnows survived, and, even if, the search was not conducted until someone noticed that the ship was extremely late. Two minutes after this discovery, the news was sent all over Dellat. What was Jenna to do now? She didn't know if her parents were dead or alive, she didn't know she had a sister (not that it would've made much of a difference), and the concept that she might be a Rith stuck in her mind. All the answers she needed or wanted would come to her. It would just take time. Until that time, she lived life on her own. Her best friend, Jason Davern, whom she had met at school when she accidentally slammed her locker door into his face, gave her a bit of help. Jenna was welcome to stay with him and his parents until something came up. She moved out of her old home, but would return from time to time, either to simply think about life, or to work on scientific experiments. Thankfully, that house had become her property and not that of the town's when her parents disappeared, so no one really minded when she blew out a wall or completely wrecked something. However, blowing out walls would lead to a rather odd experience later in life. Two-and-a-half years later, she came to her house, only to find that someone had broken in. Well, it can't really be called 'breaking in,' because the person had come in through a pre-existing hole in a wall. When she saw a man rummaging through boxes of old pictures and desk drawers, she became frightened, but her curiosity rooted her to the spot she stood. Clutching her pendant, she asked the basic 'Who are you?' question. The man had a gruff five-'o-clock shadow, short gray hair, and a strange glazed-over look in his eyes. By looking at his face, she thought the man was an old derelict. His attire said otherwise. The man was wearing a black business jacket, black slacks, black loafers, and a gray button-up under the business jacket. In actuality, the man had been heavily drugged, abducted from Earth, and sent out to find somebody. But Jenna didn't know that. Somehow, he could tell just by looking at her that she was of Rith. He asked if she was Rith, but she had no idea what he was talking about. He then grabbed her by the shoulders and proceeded to shake her about, asking where 'it' was. This frightened Jenna so much, that she ran for her life. She didn't know what the 'it' was that he was searching for, but it was presumably some Rith artifact or talisman that held some hidden power. When the local authorities finally arrived to investigate, the man was nowhere to be found. She didn't go back to her house for a week after that.

Six months later, another unexpected occurrence found its way to Jenna's doorstep. Surfy and George had come by, looking for someone whom they claimed was her sister. (The story about Jenna looking for Jessie is explained in Jessie's bio; paragraphs 3-5.) During their search for Jessie, Jenna, Surfy, and George became good friends. Their search took quite a few days… but it was well worth it. After finding Jessie, Jenna stayed on Dellat while Surfy and George took Jessie back to the C. Force HQ. She did this in order to put the finishing touches on a new teleporter. Three days afterward, she told Jason that she would be leaving for Earth. They had a brief good-bye, and she jumped into her newly-finished teleporter… She reappeared in Croto's backyard merely a few seconds later… unconscious. Surfy and Roter quickly attended to her, bringing her inside. She found out the cause of her unconsciousness after she gained it back. In order for the teleporter to work correctly, it must had two elements; a deliver pod, and a receive pod. It had taken two days for the receive pod to travel from Dellat to Earth, and, traveling at those speeds, something was bound to get stuck in there. That something was a single piece of dust. This single piece of dust damaged a system, and resulted in Jenna's unconsciousness. She was revived within hours.

A humungous bash was held for the sisters. They were both the first female members, and the youngest to join up (you've got Fox, Surfy, and George to compete with in the age department; Mervin's a no-contest). Jessie and Jenna Donsnow officially joined on July 10th of 1996. Ever since, the C. Force has really been different. While Jessie usually goes out on every mission, Jenna stays at the HQ and does other things that could be of help later. Jenna only goes on missions where someone of her superior intellect is needed, and Roter's busy somewhere else.

One day, Jessie came up with the idea that if she could use Magic Quartz (refer to Jessie's bio for details), then maybe Jenna could too. Out in the backyard of the C. Force HQ, she gave Jenna the quartz, explained her idea, instructed her on usage, then backed away some 20-odd feet. Jenna gave it a shot… And it didn't work. But there was some strange interaction between Jessie's quartz and Jenna's crystal, but neither of them noticed. The reaction turned the crystal into a conduit for Jenna's concentration. That jump-started the Rith power hidden inside her; had this not happened, it would've taken Jenna years to learn how to use her hidden talents. Her powers are generally the opposite of Jessie's; she has the ability to heal and revive things, one of the powers that the Rith were notorious for. At this point, she learns that she is of the Rith. Though Jenna denies it, she does show signs that she is of the Rith. She 'knows' she can't be, and if she admitted it, the media would be all over her like flies on an uncooked steak left in the sun for too long. She would be one of the only true Rith left in the known universe. No one else knows she is Rith (save Tipe), not even Jessie. Jenna plans to keep it this way.

Around the C. Force HQ, Jenna is a fun person to. She's kind, understanding, and very trustworthy. Everyone there knows that she's the best one to confide in… One day, she decided to take on the daunting and near-impossible task of making Kathryn and Ceige friends, but not rivals. She has failed at all attempts thus far. Plus, she knows that Kathryn wants to be human. But, despite all of this, she wishes she could talk to someone she could really relate to. Someone like Jason, whom she has strong feelings for but would never admit to, or her parents, whom she wonders if she will ever see again.

Jenna likes to be known as an innovator. And, even if most of her creations don't work or are useless, she still makes a good friend…