In the fifth book, Charlie finds his lost father and he discovers the truth after Lyell was hypnotised, he was transformed into "Mr. Pilgrim", a very spacy and quiet teacher in Bloor's. He is soon reunited with his family, and pretends to go on a honeymoon with his wife, Amy, but when Lyell is injured, Charlie Bone finds out he is actually the Red Knight. It turns out that Lyell and Amy had to keep the Bloors from finding out the true identity of the Red Knight.
Later, when Lyell has recovered from his wounds during the battle, it turns out that Maybelle's box was hidden in the cathedral under the organist's seat in a secret compartment and it actually turned out that Bloor's Academy is rightfully his. He then renames Bloor's Academy to the Bone Academy.Lyell then asks Billy Raven is he wants to come home with him and become his and Amy's adopted son to which Billy happily agrees. According to Lyell, it was Charlie's idea and he and Amy really wanted another son.
Lyell's mother Grizelda and her sisters began to dislike Lyell as he began to disagree with their plans and "go too far". He did this once, as in breaking the ancient Yewbeam Law by marrying Amy Jones, a girl who wasn't a descended of the Red King. Even though Lyell recieved a silk blue tie with a gold "Y" on it, he had proven himself, possibly when he was younger, as a true Yewbeam to his mother.
Lyell is considered a hero and the bravest man on earth to Billy Raven.