Ink, iron and glass

If someone is well versed in cryptography, on earth he is considered crazy.
Elsa lives in the written world. She is almost 17. Soon Elsa will receive a book by Veldana and will take care of her.
But something goes wrong. The boundaries of the world are unstable. Its creator - the most famous European cryptograph Charles Montigne - is killed, and the mother of Elsa is abducted.
The girl goes from Veldana to the ground to find her. In Italy, she will meet the secret society of scientists - mechanics, alchemist and cryptographer, learns about the most dangerous weapons of all time and will open the veil of a political conspiracy.
Elsa is born for science. But will she cope with the role of Veldana"s caretaker?