The Galahad Archives Book One: Leaving Earth is the first of three thrilling two-book omnibus editions in the Galahad Archives series for young adults by Dom Testa.

When the tail of the comet Bhaktul flicks through the Earth's atmosphere, deadly particles are left in its wake. Suddenly, mankind is confronted with a virus that devastates the adult population. Only those under the age of eighteen seem to be immune. A renowned scientist proposes a bold plan: to create a ship that will carry a crew of 251 teenagers to a home in a distant solar system. Two years later, the Galahad and its crew—none over the age of sixteen—is launched.

In The Comet's Curse the Galahad's fledgling crew discovers they didn't set out from Earth alone. Someone has stowed away on the ship and means to sabotage their mission. In The Web of Titan the crew discovers a mysterious metal pod in space. As they prepare to bring it on board they're hit by an unknown disease that is beyond their medical experience and spreading fast. Sixteen-year-old commander Triana Martell and her council must find a way to overcome all obstacles. For if their mission fails, it will mean the end of the human race.

The Comet's Curse, the first book included in the omnibus, is an American Library Association Popular Paperback for Young Adults

“What began as a fairly straightforward tale of 251 teens shot into space to escape a ravaging disease on Earth became a deeper, broader, scarier, and more intellectually stimulating journey with every book.” —Booklist, starred review, on the Galahad Archives series