"When the Betelgeuse message was detected, it changed a lot of things on Earth. We began to look seriously outward, not with the heady optimism of the early days, but with deliberate calculation. We knew that Someone was out there, and that eventually, they’d be coming. If Earth didn’t occupy the High Frontier, it could be ours to lose."

Twelve years have passed since the events of A Handful of Stars. Star continues to silently mourn Caleb’s death, World Builders, Inc. is completing its first asteroid-based Bernal sphere, and the Svensdotter twins are of a restless age. When the opportunity to undertake a survey mission of Mars’ Cydonia region presents itself, Star leaps at the chance. Drifting above Mars' surface, the family rediscovers the wonder of pure exploration.

Two thousand people go missing in Alaska every year. They vanish in the middle of mountain footraces, on fishing boats in the Bering Sea, on small planes in the Bush. Now a geologist known for going walkabout with his rock hammer has disappeared from the Suulutaq Mine in the Park. Was it deliberate? An accident? Foul play? Kate Shugak may be the only person who can find out. But for the fact that Kate, too, is among the missing....

Alaska State Trooper Liam Campbell, newly promoted to corporal, is slowly making a home for himself in the remote town of Newenham. Between DUIs and domestic disputes, life is relatively tranquil, until Campbell's girlfriend, bush pilot Wyanet Chouinard, delivers a shipment of mail to a remote post office, where she finds the postmistress murdered. The hunt is on for a killer who seems to have vanished into the Bush... Until another victim is found. Chilling connections from the past make the search a matter of life and death.

It is New Year's Eve, nearly six weeks into an off-and-on blizzard that has locked Alaska down, effectively cutting it off from the outside world. But now there are reports of a plane down in the Quilak mountains. With the NTSB (National Transportation Safety Board - responsible for investigating aviation incidents) unable to reach the crash site, ex-trooper Jim Chopin is pulled out of retirement to try to identify the aircraft, collect the corpses, and determine why no flight has been reported missing. But Jim discovers survivors: two children who don't speak a word of English.