When a young member of the Sleepyheads discovers a mysterious message, she must decipher its secrets and navigate the perilous world of the clandestine club....

In a world where the shadows whisper secrets, a young thief must unravel the enigma of the Clandestine Club to save her brother from a fate worse than death....

In the shadowed corners of the school, a forbidden knowledge sleeps, waiting to be awakened. When a Sleepyhead whispers the last word, secrets that have been hidden for centuries may be revealed, but at what cost?...

In the midst of their secret adventures, a mysterious disappearance threatens to unravel the fabric of the Secret Society of the Seven, and it’s up to the young members to uncover the truth and save their club from the brink of collapse....