Philip Curtis

1920

• Invasion of the comet people
• Invasion of the brain sharpeners
• Mr. Browser and the Brain Sharpeners
• Invasion from below the earth
• Message extraterrestre
• Mr Browser meets the mind shrinkers
• Pen Friend from Another Planet (Andersen Young Readers' Library)
• The Brain Sharpeners Abroad (Andersen Young Readers' Library)
• The Toothless Wonder and the Double Agent (Andersen Young Readers' Library)
• Welcome to the Giants
• A Gift from Another Galaxy (Andersen Young Readers' Library)
• A hawk among sparrows