Mallory and the Trouble with Twins Ex-Library Hardcover – Baby-Sitters Club #21

The Arnold twins aren't just bad — they're double trouble! Mallory Pike has her hands full babysitting the Arnold twins, who are spoiled, demanding, and impossible to handle. A funny, relatable story about patience, empathy, and seeing past the surface from Ann M. Martin's beloved Baby-Sitters Club series.

📚 Details
📚 Series: The Baby-Sitters Club #21
📖 Title: Mallory and the Trouble with Twins
✍️ Author: Ann M. Martin
🏢 Publisher: Scholastic
📘 Format: Hardcover (Perma-Bound)
📅 Edition: First Edition

🔖 Condition
⚠️ Ex-library copy — may include library markings, stamps, stickers, or labels on the cover and/or interior pages.