Ashfall Series by Mike Mullin (nyxeus)

ASHFALL BY MIKE MULLIN
Under the bubbling hot springs and geysers of Yellowstone National Park is a supervolcano. Most people don't know it's there. The caldera is so large that it can only be seen from a plane or satellite. It just could be overdue for an eruption, which would change the landscape and climate of our planet.
For Alex, being left alone for the weekend means having the freedom to play computer games and hang out with his friends without hassle from his mother. Then the Yellowstone supervolcano erupts, plunging his hometown into a nightmare of darkness, ash, and violence. Alex begins a harrowing trek to search for his family and finds help in Darla, a travel partner he meets along the way. Together they must find the strength and skills to survive and outlast an epic disaster.


ASHEN WINTER BY MIKE MULLIN
It’s been over six months since the eruption of the Yellowstone supervolcano. Alex and Darla have been staying with Alex’s relatives, trying to cope with the new reality of the primitive world so vividly portrayed in Ashfall, the first book in this series. It’s also been six months of waiting for Alex’s parents to return from Iowa. Alex and Darla decide they can wait no longer and must retrace their journey into Iowa to find and bring back Alex’s parents to the tenuous safety of Illinois. But the landscape they cross is even more perilous than before, with life-and-death battles for food and power between the remaining communities. When the unthinkable happens, Alex must find new reserves of strength and determination to survive.


SUNRISE BY MIKE MULLIN
The Yellowstone supervolcano nearly wiped out the human race. Now, almost a year after the eruption, the survivors seem determined to finish the job. Communities wage war on each other, gangs of cannibals roam the countryside, and what little government survived the eruption has collapsed completely. The ham radio has gone silent. Sickness, cold, and starvation are the survivors' constant companions.

When it becomes apparent that their home is no longer safe and adults are not facing the stark realities, Alex and Darla must create a community that can survive the ongoing disaster, an almost impossible task requiring even more guts and more smarts than ever — and unthinkable sacrifice. If they fail . . . they, their loved ones, and the few remaining survivors will perish.

This epic finale has the heart of Ashfall, the action of Ashen Winter, and a depth all its own, examining questions of responsibility and bravery, civilization and society, illuminated by the story of an unshakable love that transcends a post-apocalyptic world and even life itself.

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