Dr. K's books are now available at Broad Street Books · Find the store
Ages 8–12 · Chapter books

Dr. K'sPortal Through Time

Join Jennifer and Daniel as they journey through Dr. K's magical time portal, meeting famous historical figures and learning about important moments in history.

Books in the series

6 journeys through time

A chapter-book series for readers aged 8–12 that combines history, science and adventure. Illustrated by Emilie B. Nuñez and published by Palmetto Publishing.

Latest in the series

Rosalind Franklin's DNA Discovery

Dr. K's Portal Through Time, Book 5 · for readers aged 8–12

Mid-century England, Photo 51, and the secret code of life.

Meet the characters

Who goes through the portal

Jennifer, 10

Curious, adventurous and always eager to learn. She has a natural fascination with the stars and often takes the lead in asking questions.

Daniel, 8

Jennifer's lively, imaginative younger brother. His enthusiasm, unexpected insights and humor bring a unique perspective to every journey.

Dr. K

The brilliant and enigmatic scientist who guides the children through time, making complex ideas accessible and exciting.

Dr. Liu

Jennifer and Daniel's grandfather, a retired engineer. He doesn't know about the time portal, but his stories spark the children's curiosity about science.