When Walls Fail Your Dreamscape
From Absit Omen Lexicon
"When Walls Fail Your Dreamscape" is a thin hardcover book written by Yavin Morgenthau in the early 2000s. It is a rather technical publication, whose intended audience are practiced Legilimens and Occlumens who already have experience with Dream magic or Somnilency. As a result it is not one of his more popular books and is not widely in circulation anymore. Among other places, a copy may be found in the British Magical Library and Virgil Carstairs's bookshelf.