This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

Before Layla Holden can start her freshman year at Coltin High, she receives an unexpected invitation to attend a private school she's never heard of. She doesn't hesitate to accept, eager to escape the close-minded small town where she's been taunted and teased for seeing otherworldly creatures. Anywhere has to be better than home. Yet she's only permitted to go if she brings her twin sister Sabine along for the ride. Inside the walls of the castle-like fortress on the isolated campus, the girls find many secrets and hidden mysteries. Layla's never shied from challenges and is determined to pass her first year. However, with more unusual and bigger monsters lurking at the school, she struggles to keep her ability a secret. On top of the pressure to succeed in the competitive school, she also attracts the attention of a new student, Flynn Madsen. He's not the only one who's curious about her, but he seems to have the same gift of sensing these supernatural beings. In a new school, it's impossible to know who to trust and what to believe. By keeping her own secrets closely guarded, Layla has to have faith in herself. Not her bookish roomie, not the cute new boy who seems too curious about her. Because sometimes holding your own secrets can overpower the need to unravel others--a fine balance of controlling your fears or letting them destroy you.

This book provides an informal and geodesic introduction to factorization homology, focusing on providing intuition through simple examples. Along the way, the reader is also introduced to modern ideas in homotopy theory and category theory, particularly as it relates to the use of infinity-categories. As with the original lectures, the text is meant to be a leisurely read suitable for advanced graduate students and interested researchers in topology and adjacent fields.