Key 1: Answer A. Adding up the numbers referring to the seven figurines presented in bold in the story, we find 100.
Key 2: Answer B: hissing. Ernest Naville talks about Ovid's Metamorphoses painted on the ceiling and an animal to be found. The first clue indicates “pointed” and the second “sound”, with a strange chart with syllables. On the museum's presentation page, each paragraph begins with a letter and a number. They refer to this table: A3: two, B3: an, C2: gels
So « two angels ». The only fresco on the ceiling with two angels is the one with the snake, pointed, which is… hissing.
Key 1: the answer is 23. The dragon on the ceiling has twenty claws and three fangs, so 23 in total.
Key 2: Answer D. Vase 4 is the right one, but its picture has been reversed. All the others are wrong.
Key 1: The answer is 71. To find out this number, you will have to find the columns shown on the pictures. By connecting them in order, as stated on the message, the three A's make up a 7, the two Bs, a 1.
Key 2: Answer B. This is teapot 11. As Ariane De la Rive indicates it, the teapot is located on the first floor, in the study collections, in the incoming room. It is neither German, nor oriental, nor Italian, nor angular, and with a unicolored spring décor. The only teapot in the study room that fits this description is teapot 11.