The clues point you to the ‘table of contents’ then find the ‘missing shift key’. You will notice that starting at Day 1 going to Day 7 each day has a shift key symbol that correlates to the top of the number row on the keyboard… the symbols count backwards until ‘&’… aka 7… which is missing. Seven is a prime number that has significance in all religions since ancient times - ultimately representing wholeness, perfection, and God. Seven is also considered a lucky number and is the most popular/favourite for people around the world.
The number famously denotes… 7 days of creation, 7 days a week, 7 colours in the rainbow, 7 deadly sins, 7 seas, 7 continents, 7 heavens, and, of course, the 7 Dwarfs. Fun fact: it took quite a while to give the 7 Dwarfs names… originally on the list of potentials included Deafy, Dizzey, Wheezy, Baldy, Gabby, Sniffy, Lazy, Puffy, Stuffy, Tubby, Shorty, and Burpy.
The infamous seven year famine in Egypt, as described in Genesis, is part of the inspirational story of Joseph’s tragic beginnings as he was sold into slavery, wrongfully imprisoned, then catapulted to vizier (second in command to Pharaoh) where he masterfully managed the food crisis, saving countless lives.