Ch. 1143War (IV)
Amosta watched the battle for Diagon Alley from the train, where he sent Typhoeus and the unconscious Thanatos away and reacted sharply when he saw Hufflepuff's Cup. At Grimmauld Place, the Weasley family received word that Arthur had been seriously injured and taken to St. Mungo's.
- Amosta reassured Typhoeus that Thanatos would recover, then told him the train's gold would ultimately be returned to Gringotts and placed in the Ministry's underground vault.
- Amosta watched Kingsley kill Alecto Carrow before Amycus attacked the fallen Kingsley, who was carried from the battlefield by Hit Wizards.
- Arthur and Alastor fought Antonin Dolohov; Arthur killed him, but Dolohov's final spell gravely wounded Arthur, and Alastor helped remove him from the battlefield.
- The Longbottoms gained the advantage against Bellatrix until a huge wizard joined the fight to help her, while Sirius and Lucius remained evenly matched.
- Amosta spotted Hufflepuff's Cup in the mud, and his power caused every bottle on the train's wine rack to explode.
- At Grimmauld Place, Hermione repaired a broken plate for Mrs. Weasley, then the family received a Ministry message saying Arthur had been seriously injured and sent to St. Mungo's.