A Wizard's Undercover Career

"Wizard Allen! Have you written the autobiography that the Tower of Civilization invited you to produce? As a legendary figure, your life will definitely inspire a new generation of wizards." "It's already written. It's on the table over there. Get it and go out. Don't delay my experiment." The visitor came to the desk quietly. A heavy book was randomly discarded on the messy table. The name of the autobiography was recorded on the new cover of the book, "My Years as an Undercover Agent in the Infinite World." This book is also called "The Witcher Expanse"