# Iggy Peck and the Mysterious Mansion: The Questioneers Book #3 - Hardcover

by **Andrea Beaty** (Author), **David Roberts** (Illustrator)

**_New York Times_ bestselling series!**  
**Now a Netflix Series!**

From the #1 _New York Times_ bestselling team Andrea Beaty and David Roberts who created _Ada Twist, Scientist_ and _Iggy Peck, Architect_ comes a spirited story full of adventure, friendship, and _science_! This is a unique and exciting series of children's chapter books for children, parents, and teachers who want to make STEM (Science, Technology, Engineering, and Math) fun.

Iggy Peck is an architect at his very core: When he's not making houses out of food, his head is up in the clouds, dreaming of design. So, he's totally blown away when Ada Twist's Aunt Bernice inherits an old house from ice-cream mogul Herbert Sherbert that is filled with countless rooms from all his favorite architectural periods. But something's not quite right . . .

Everyone says the house is haunted, and it seems that a number of priceless antiques--which were supposed to help Aunt Bernice pay for the house's upkeep--have gone missing. If they can't find those antiques, Aunt Bernice might lose the house forever.

It will take all of Iggy's knowledge of architecture and the help of the other Questioneers--Rosie Revere, Ada Twist, and Sofia Valdez--to solve the mystery and find the treasure!

Collect the Whole Series:  
_Rosie Revere and the Raucous Riveters: The Questioneers Book #1_  
_Ada Twist and the Perilous Pantaloons: The Questioneers Book #2_  
_Iggy Peck and the Mysterious Mansion: The Questioneers Book #3_  
_Sofia Valdez and the Vanishing Vote: The Questioneers Book #4_  
_Ada Twist and the Disappearing Dogs: The Questioneers Book #5_  
_Aaron Slater and the Sneaky Snake: The Questioneers Book #6_

### Author Biography

**Andrea Beaty** is the author of the Questioneers series, _Attack of the Fluffy Bunnies_, and _Happy Birthday, Madame Chapeau_ among other children's titles. She lives just outside Chicago. Visit her online and learn more about the Questioneers at Questioneers.com. **David Roberts** has illustrated many children's books, including the Questioneers series, _The Cook and the King_, and _Happy Birthday, Madame Chapeau_. He lives in London, where, when not drawing, he likes to make hats.  

**Number of Pages:** 144

**Dimensions:** 0.7 x 8.1 x 5.6 IN

**Illustrated:** Yes

**Publication Date:** May 12, 2020

**Accelerated Reader:**

**Quiz Name:** Iggy Peck and the Mysterious Mansion

**Interest Level:** Lower Grades, K-3

**Reading Level:** 3.9

**Point Value:** 2

## Details

- **Price:** 12.99 USD
- **Vendor:** Books by splitShops
- **Type:** Books
- **Tags:** Books by splitShops, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12.99 USD | In stock |

## Images

- Iggy Peck and the Mysterious Mansion: The Questioneers Book #3 - Hardcover

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> Updated: 2026-07-22