Tŷ Newydd Mysteries: The Disappearing Trick follows David Stevenson, a web developer living with OCD, and his best friend, dentist Siôn Watkins, who find themselves at the centre of an impossible mystery when a man vanishes from a locked room during a ghost tour at the eerie Tŷ Newydd mansion in Penmaenmawr, North Wales. Co-owned by Siôn and his half-brother Gwyn, a self-styled psychic, Tŷ Newydd is rumoured to be haunted.
As the duo face a rollercoaster ride of intrigue, illusion and deception, they are drawn even closer together. David struggles with his escalating feelings for Siôn, but a near-kiss they shared years earlier has made it difficult for him to reveal the truth.
When the mystery inexplicably deepens, Gwyn's behaviour becomes increasingly threatening and volatile. Desperate to protect his secrets, he will do anything to conceal his sinister activities.
Now caught in Gwyn's crosshairs, can David solve the impossible mystery, or will Gwyn silence him first?