The Note to wife is an optional artifact in the Salt Lake City bus station. Search the luggage along the wall opposite the ladder; it is in an open suitcase along with some crafting parts.
Graham tells Lucia that he and their daughter Hanna reached the quarantine zone. The phones are down, but soldiers promise letters can travel between zones. He says Hanna is coping better than he is and hopes to hear Lucia's voice soon.
Written in the first days of the outbreak, it shows how much people still trusted the quarantine zones, and Joel's comment underlines how that turned out.
Bomb: Shrapnel
Bomb: Shrapnel is the last training manual, on top of a box truck in the underground tunnel of Bus Depot. It doubles the blast radius of nail bombs.
Catalysis
Catalysis, issue 13 of Savage Starlight, sits at the end of the ventilation ducting that runs along the underground tunnel in Bus Depot.
Family photograph
The Family photograph is an optional artifact in an overgrown camper on the highway at the start of Bus Depot. Before you leave the highway, climb into the camper in the middle of the road and check the dining table on the left.
Natalie Hoo's Firefly Pendant
Natalie Hoo's Firefly pendant lies in a corner behind a city bus on the ramp down to the underground tunnel in Bus Depot. It belonged to Natalie Hoo.