When Emilie and Daniel arrive in Silk Harbor, Professor Abindon, an old colleague of the Marlendes, warns them that she's observed something strange and potentially deadly in the sky, a disruption in an upper air aether current. But as the Marlendes investigate further, they realize it's a ship from another aetheric plane. It may be just a friendly explorer, or something far more sinister, but they will have to take an airship into the dangerous air currents to find out. Emilie joins the expedition and finds herself deep in personal entanglements, with an angry uncle, an interfering brother, and an estranged mother to worry about - not to mention a lost family of explorers, the strange landscapes of the upper air, and the deadly menace that inhabits the sky world.

 

 

There are 160 pages in this book.

It is aimed at Young Adult readers. The term Young Adult (YA) is used for books which have the following characteristics: (1) aimed at ages 12-18 years, US grades 7-12, UK school years 8-15, (2) around 50-75k words long, (3) main character is aged 12-18 years, (4) topics include self-reflection, internal conflict vs external, analyzing life and its meaning, (5) point of view is often in the first person, and (6) swearing, violence, romance and sexuality are allowed.

This book was published in 2014 by Angry Robot .

Martha Wells is the author of several fantasy novels that have been published by Tor and HarperCollins, including Death of a Necromancer, which was a 1999 Nebula Nominee. Publishers Weekly has said of her work: "Wells continues to demonstrate an impressive gift for creating finely detailed fantasy worlds rife with many-layered intrigues and immensely personable characters. " And she has been lauded by authors such as Anne McCaffrey and Robin Hobb. Her books have been published in eight languages, including French, Spanish, German, Russian, and Dutch. Her most recent novel, The Cloud Roads was released by Night Shade Books in 2011. The sequel The Serpent Sea is forthcoming in 2012.