While honeymooning in the Tower of Babel, Thomas Senlin loses his wife, Marya.

The Tower of Babel is the greatest marvel of the Silk Age. Immense as a mountain, the ancient Tower holds unnumbered ringdoms, warring and peaceful, stacked one on the other like the layers of a cake. It is a world of geniuses and tyrants, of airships and steam engines, of unusual animals and mysterious machines.

Thomas Senlin, the mild-mannered headmaster of a small village school, is drawn to the Tower by scientific curiosity and the grandiose promises of a guidebook. The luxurious Baths of the Tower seem an ideal destination for a honeymoon, but soon after arriving, Senlin loses Marya in the crowd.

Senlin’s search for Marya carries him through madhouses, ballrooms, and burlesque theaters. He must survive betrayal, assassination, and the long guns of a flying fortress. But if he hopes to find his wife, he will have to do more than just survive. This quiet man of letters must become a man of action.