A hidden section at the end of the book that unlocks as you read. Photos of "the knife" or Anna's sketches.
Tap their window to see a timeline of what Anna "saw" vs. the truth. La Mujer En La Ventana Finn A J epub
A dynamic map located in the ePub’s navigation menu or as a pop-up link. A hidden section at the end of the
Subtle background noise (rain on glass, a camera shutter, or a Hitchcock-style score). a camera shutter
Anna is a fan of old movies. This feature bridges the gap between text and cinema.