Dom Testa's Galahad series has already claimed multiple awards, including a Writer's Digest Grand Prize, selected from over 1500 international titles. Now, in this thrilling third volume, the teenage explorers confront their biggest challenge yet, as they plunge through the edge of the solar system. The Council must face a hostile crew, a medical crisis, and a treacherous storm of space debris. Their only hope for survival might come from the most unlikely - and frightening - source.