Whelan's pace throughout the book mirrors the pace of teen heroine Julia's adventure. At times the book speeds through the ancient streets of the Ottoman Empire. Other times it plods along through the desert. Even when the pace slows down, the layered characters and glimpses at their hidden agendas keep things interesting.

Even though Julia is rather sheltered, she begins to catch on to the true nature of almost everyone -- though at times readers will jump up and down in frustration at her moments of blind trust. Readers will never want her to feel too comfortable since suspense and suspicion are everywhere.

As a bonus, Parade of Shadows is peppered with detailed historical references. It's kind of like a sneaky history lesson disguised as fun. There's even a ride on the famed Orient Express!