City of the Dead (City Spies, 4)

In this fourth installment in the New York Times bestselling series from Edgar Award winner James Ponti, the young group of spies go codebreaking in Cairo in another international adventure perfect for fans of Spy School and Mrs.

Smith’s Spy School for Girls.Codename Kathmandu, better known as Kat, loves logic and order, has a favorite eight-digit number, and can spot a pattern from a mile away.

So when a series of cyberattacks hits key locations in London while the spies are testing security for the British Museum, it’s clear that Kat’s skill for finding reason in what seems like randomness makes her the perfect candidate to lead the job.