Final answer:
Henry finds out the Okabes are going to a temporary relocation center called Camp Harmony, which was one of the government-run camps where Japanese Americans were forced to live during World War II.
Step-by-step explanation:
Henry finds out the Okabes are going to a temporary relocation center called Camp Harmony. After the Japanese attack on Pearl Harbor in 1941, the U.S. government forced the relocation of nearly 120,000 Japanese Americans to government-run camps across the West. These camps, such as Manzanar, Poston, and Granada, were desolate places where residents lived in temporary barracks surrounded by barbed wire and guard towers. They organized governing bodies, schools, farms, and even newspapers to document daily life in the camps.