The colonel Fosset is well-known as one of the chief researchers of South America. Fosset entered into Royal Geographical society. The Brazilian central territories were the central object of its researches. Here Fosset went several times – only seven to the period from the 1906th on the 1924th.
In the 1925th year the colonel goes to the state to the Mat Grosso, and this travel became the last in its destiny.
Before departure the researcher makes the will: not to look for group under its management if expedition doesn't return in due time. The group really disappeared, and a set of attempts to learn at least something about a route and destiny of Fosset and his adherents to anything didn't lead. Was to find the purpose of group the forgotten city in the Mat Grosso.