Book Series · 3 Books

Time Castaways Books

In order from The Mona Lisa Key to The Forbidden Lock.

Where the story begins

First Book in the Series

Sale price

$958

Book #1 · Chapter Book · Ages 9–12 · 2018

The Mona Lisa Key

By Liesl Shurtliff

Three siblings board the wrong subway, landing in a time-traveling adventure to solve a historic art heist.

416 pages· 90,468 words· Est. 10 hour read

$9.99Save 4%

Summary: Mateo, Ruby, and Corey Hudson break a family rule and board a subway, only to find themselves on a time-traveling ship in 1911 Paris. As they unravel family secrets, they become entangled in a legendary art heist. With the past, present, and future at stake, can they navigate this magical mystery and uncover the truth? The adventure aboard the Vermillion is just beginning, and the siblings must race against time to solve the puzzle before it's too late.

In reading order

Time Castaways Series

3 books · Published 2018–2021

Sale price

$958

The Mona Lisa Key

Chapter Book · Ages 9–12 · 2018

Three siblings board the wrong subway, landing in a time-traveling adventure to solve a historic art heist.

Sale price

$759

The Obsidian Compass

Chapter Book · Ages 8–12 · 2019

Time-traveling siblings race to rescue a friend from a cunning villain.

Sale price

$759

The Forbidden Lock

Chapter Book · Ages 9–12 · 2021

Time unravels as kids battle a villain who can erase history.

Good to know

Common Questions

How many books are in the Time Castaways series?

There are 3 books in the Time Castaways series. It began with The Mona Lisa Key in 2018, and the newest book, The Forbidden Lock, was published in 2021.