The topic today in Sunday Stamps-II is Bizarre or unexplainable. I guess somebody else will post the same stamps...
On 15 September 2016, Royal Mail issued a six-stamps set to mark the centenary of Agatha Christie's first crime novel, and also the 40th anniversary of her death.
The Special Stamps depict key scenes and principal characters from six iconic novels: The Murder of Roger Ackroyd, The Mysterious Affair at Styles, Murder on the Orient Express, The Body in the Library, And Then There Were None and A Murder is Announced.
To add even more mystery, the six stamps contain hidden secrets in the form of microtext, UV ink and thermochromic ink. These concealed clues can be revealed using either a magnifying glass, UV light or body heat and and provide pointers to the mysteries’ solutions.
I have received the two I am posting, but I haven't still had the time to find the hidden clues*... Now I feel like reading again all these novels.