Digger: Dig or Die! :

In this dystopian middle grade novel Digger: Dig or Die!, a climate change disaster forces humanity to search for safety as Earth's atmosphere escapes into space. Narrated by siblings Nick and Lily, the story follows their resourcefulness in aiding neighbors. Nick's digging prowess and Lily's strategic planning become vital as oxygen diminishes. Nick unveils a hidden tunnel connecting houses, forming a lifesaving network as breathable air disappears. Lily crafts a communication system with walkie-talkies and baby monitors to share critical information. A frantic race ensues to complete tunnels before food and oxygen become scarce; it’s a tense battle for survival in a world teetering on the edge of extinction.