This is the middle-grade mystery series we needed. Jordan Stratford takes two of history's most fascinating women and imagines them as young friends solving crimes—and it actually works. The alternate history angle is clever without being confusing, and the STEM emphasis feels natural because, well, Ada Lovelace literally invented computer programming.
The mystery itself is age-appropriate and engaging—stolen heirloom, false confession, quirky suspects—without being dumbed down. Ada's genius and social awkwardness paired with Mary's emotional intelligence creates a Holmes-and-Watson dynamic that models how different strengths complement each other.
What really sells it is the balance: it's educational without being preachy, feminist without being heavy-handed, and historical without being boring. The backmatter is gold for curious kids who want to know what's real. At 4.5 stars on Amazon and recommended for ages 8+, this hits the sweet spot for kids ready to graduate from Magic Tree House but not quite ready for full YA.






