Milky Way
First appears in Book 3: Death's End, chapter 24 (Deterrence Era, Year 62 Gravity, in the Vicinity of the Oort Cloud)
Appearances
B1
B2
B3
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This first turns up in Book 3. Come back when you get there.
First appears in Book 3: Death's End, chapter 24 (Deterrence Era, Year 62 Gravity, in the Vicinity of the Oort Cloud)