One Giant Leap

By Heather Kaczynski | Publisher: HarperCollins

About the book

Leap into the unknown with the second book in Heather Kaczynski’s heart-pounding duology, which is perfect for fans of The 5th Wave.

When Cassandra Gupta was chosen to be the youngest member of a top-secret mission to the far reaches of the universe, she knew to expect the unexpected. But nothing could have prepared her for the catastrophic events that would occur once she left Earth.

Cassie and the rest of the crew have found themselves in the middle of a conflict between two alien civilizations hell-bent on destroying each other . . . and anyone else who gets in their way.

What was supposed to be a reconnaissance mission soon becomes a fight for their lives. But Cassie knows that it isn’t enough to simply survive.

The war is coming to Earth, and only she has the information that can possibly stop the devastation it will bring. With humanity’s fate in the balance, Cassie must decide who she can trust and who she's willing to sacrifice in order to complete her mission.


  • First Contact Gone Wrong: The mission was to meet a new species, not get caught in the crossfire of an interstellar war. Now, Cassie and her crew are collateral damage.
  • A High-Stakes Survival Story: Stranded light-years from home, Cassie must fight for her life against enemies she doesn’t understand and allies she can’t fully trust.
  • An Impending Alien Invasion: This cosmic battle isn’t staying in deep space—it’s coming to Earth, and only Cassie knows the truth that can prevent humanity’s extinction.
  • A Riveting Space Opera Duology: Perfect for fans of action-packed sci-fi with impossible choices and the fate of the universe hanging in the balance.

Editions of One Giant Leap

Hardcover
ISBN 9780062479907
EBook
ISBN 9780062479945

Read an Excerpt

Leap into the unknown with the second book in Heather Kaczynski’s heart-pounding duology, which is perfect for fans of The 5th Wave.

When Cassandra Gupta was chosen to be the youngest member of a top-secret mission to the far reaches of the universe, she knew to expect the unexpected. But nothing could have prepared her for the catastrophic events that would occur once she left Earth.

Cassie and the rest of the crew have found themselves in the middle of a conflict between two alien civilizations hell-bent on destroying each other . . . and anyone else who gets in their way.

What was supposed to be a reconnaissance mission soon becomes a fight for their lives. But Cassie knows that it isn’t enough to simply survive.

The war is coming to Earth, and only she has the information that can possibly stop the devastation it will bring. With humanity’s fate in the balance, Cassie must decide who she can trust and who she's willing to sacrifice in order to complete her mission.


  • First Contact Gone Wrong: The mission was to meet a new species, not get caught in the crossfire of an interstellar war. Now, Cassie and her crew are collateral damage.
  • A High-Stakes Survival Story: Stranded light-years from home, Cassie must fight for her life against enemies she doesn’t understand and allies she can’t fully trust.
  • An Impending Alien Invasion: This cosmic battle isn’t staying in deep space—it’s coming to Earth, and only Cassie knows the truth that can prevent humanity’s extinction.
  • A Riveting Space Opera Duology: Perfect for fans of action-packed sci-fi with impossible choices and the fate of the universe hanging in the balance.

Frequently Asked Questions

What is One Giant Leap about?

Leap into the unknown with the second book in Heather Kaczynski’s heart-pounding duology, which is perfect for fans of The 5th Wave.

When Cassandra Gupta was chosen to be the youngest member of a top-secret mission to the far reaches of the universe, she knew to expect the unexpected. But nothing could have prepared her for the catastrophic events that would occur once she left Earth.

Cassie and the rest of the crew have found themselves in the middle of a conflict between two alien civilizations hell-bent on destroying each other . . . and anyone else who gets in their way.

What was supposed to be a reconnaissance mission soon becomes a fight for their lives. But Cassie knows that it isn’t enough to simply survive.

The war is coming to Earth, and only she has the information that can possibly stop the devastation it will bring. With humanity’s fate in the balance, Cassie must decide who she can trust and who she's willing to sacrifice in order to complete her mission.


  • First Contact Gone Wrong: The mission was to meet a new species, not get caught in the crossfire of an interstellar war. Now, Cassie and her crew are collateral damage.
  • A High-Stakes Survival Story: Stranded light-years from home, Cassie must fight for her life against enemies she doesn’t understand and allies she can’t fully trust.
  • An Impending Alien Invasion: This cosmic battle isn’t staying in deep space—it’s coming to Earth, and only Cassie knows the truth that can prevent humanity’s extinction.
  • A Riveting Space Opera Duology: Perfect for fans of action-packed sci-fi with impossible choices and the fate of the universe hanging in the balance.

What core themes, tropes, or subjects are explored in One Giant Leap?

Children’s, Teenage and Educational > Children’s / Teenage fiction and true stories > Children’s / Teenage fiction: Fantasy

Where can I read a sample of One Giant Leap?

You can read an official preview of the few pages here https://www.book2look.com/book/9780062479907

Who is/are the Author/s of the book One Giant Leap?

Heather Kaczynski

Who is the Publisher of the book One Giant Leap?

HarperCollins

What are the ISBN numbers for the physical and digital editions?

One Giant Leap is available as hardcover(ISBN 9780062479907) and ebook(ISBN 9780062479945)

Where can I buy One Giant Leap online or support local independent bookshops?

You can buy One Giant Leap from below

Where can I buy One Giant Leap?