−50%How Vaccines Train Your Blood
Iris Fennimore · narrated by Duncan Winslow
2026
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A tiny spy slips into your blood and teaches your body to build an army against forgotten foes waiting in the shadows. Iris Fennimore turns the science of immunity into a secret-agent adventure for curious kids around six to ten, with hidden libraries, daring trials, and one very important arrival. Duncan Winslow reads it like a patient older sibling sharing something genuinely cool, keeping the facts clear and the stakes exciting without ever talking down.
17 chapters
- 1Before We Start3m
- 2Chapter 1: The Invitation15m
- 3Chapter 2: The First Day22m
- 4Chapter 3: The Library of Forgotten Foes20m
- 5Chapter 4: The Spy Who Came From Outside19m
- 6Chapter 5: The Trial of Recognition19m
- 7Chapter 6: The Vaccine Arrives14m
- 8Chapter 7: The Great Disappointment19m
- 9Chapter 8: The Classroom of Copies19m
- 10Chapter 9: The Sleeper Agents19m
- 11Chapter 10: The Booster Return20m
- 12Chapter 11: The Real Invasion12m
- 13Chapter 12: The Battle of the Bloodstream17m
- 14Chapter 13: The Graduation Ceremony14m
- 15Chapter 14: The Letter Home15m
- 16About Iris Fennimore2m
- 17Before You Close the Book1m
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