"Owner of Trident Books"@en . . "The owner of Trident Books opened his store to let the crowd buy the new Henry Skreever book. He also appeared in Arthur's imagination, handing the Police a medal to present to Supernova."@en . . "Bear"@en . "\"Prunella and the Disappointing Ending\""@en . . . . "Blond"@en . "The owner of Trident Books opened his store to let the crowd buy the new Henry Skreever book. He also appeared in Arthur's imagination, handing the Police a medal to present to Supernova."@en . . "Trident Books owner"@en . . "Male"@en . . . . . . "\"The Secret Origin of Supernova\""@en . . .