Tommy Sobeck

Tommy Sobeck is a civilian living on Earth in a small Kentucky town along with his wife Leah. Together they have a daughter, Rani.

Tommy is prone to fantastic ideas, particularly "get rich quick schemes." He first tried to start an AI dog-walking business, later moving on to sell duck meat from a pond in the backyard. After hearing of the Covenant's glassing of Coral, he took his pension money and set out to build a bunker underneath the duck pond.

His plan was to use the water as a heat sink, as water can never become hotter than 100 degrees. Beneath the pond he installed a meter of ice, wrapped in piezo-foam and pelticours. Under that, he put a meter of wax, and finally a sealant of foamed glass. The living space was created from parts of the house itself, a fact that upset Rani when she came to visit from college. The shelter was outfitted with a year's supply of food, a composer to turn waste into soil, a starship-grade recycler, and a fusion reactor to power it.

After the Battle of Earth began, Durga sent Sarah-John's car to the shelter.