To protect the young princess, in case the assassin was to return, Marcia gave her to Silas Heap, an Ordinary Wizard.

Marcia escapes with Jenna to the Marram Marshes, accompanied by Silas, his son Nicko, and a young army guard called Boy 412.

At Aunt Zelda's place in the Marram Marshes, Jenna becomes friends with Boy 412 and begins to learn magic from Marcia.

At the end of the first book, Jenna learns that Boy 412 is her long-lost adoptive brother, Septimus Heap.

The second book, Flyte, opens with Jenna getting kidnapped by her estranged brother Simon, who takes her to his hideout in the Badlands.

Jenna escapes and meets her brothers Septimus and Nicko at the port, but a dark stranger tails her.

In Physik, the spirit of the evil Queen Etheldredda tricks Jenna into sending Septimus back in time to her son, Marcellus Pye.

Nicko and Snorri stay on the "Cerys", but Jenna, Beetle, and Septimus fly home on Spit Fyre.

Although she first likes Snorri, she grows to blame her for Nicko getting trapped back in time, and they never really form a friendship.

For example, when walking with her adoptive brother Nicko (with whom she has been with her whole life, so there has never been any ideas of a romantic relationship between the two), Jenna hints that she likes Boy 412 (who was not identified as Septimus Heap until the very end of the novel).

In The Magykal Papers (a supplementary work for the series), Jenna Heap's biography states that of all people, there is no one else she would rather be with than Septimus.

Jenna had a pet rock called Petroc Trelawney in the first book, who helped her remember her life at the castle.

The rock wandered away during one of her midsummer day visits, but Wolf Boy finds it later at Aunt Zelda's cottage, and returns it to Jenna.

In the third book, Princess Esmeralda's diary is probably one of the most important items, as it tells Jenna the truth about Etheldredda and gives her a warning and time to escape.

Sam, Jo-Jo, Erik and Edd all took up a new home at Camp Heap in the heart of the forest and refused to leave.

Furthermore, the ease with which they, along with their aunt Zelda, dispatch their awe-inspiring enemy, Hunter, takes away a bit from their glory.

But she expressed disappointment over the somewhat ambiguous characterization of Jenna: As the Princess or Queenling, she comes from a turbulent past and is thrust into the anonymous world of ordinary society without any inkling of her royal background.

[6]Fantasy Literature gave a positive review for her character and said that Jenna is a bright, good and compassionate protagonist.

However, they pointed out that her character has similarities with Ginny Weasley from Harry Potter in that Jenna is also the youngest of seven siblings, all boys, including twins.

One weakness in the plot discussed in their review was the lack of a significant relationship between Jenna and her biological father.