Sending Stones

For ordinary people, and even for most Fringers, there is no telling if something is a Sending Stone or not. It can only be detected by Huncher Navigators, and just recently the Analytical Navigators learned how to feel them without using technology, though the margin of mistake is still very high.   Huncher Navigators see the Stones very differently, in a sense. Not visually, they still look like normal things, but around them there is something described as an emotional field of some kind. Different Navigators feel different things, which actually can determine a lot in their ability to move through the Time Current. Some experience uneasiness, some - unsolicited joy, or excitement of an imminent adventure. Damien Sinclair feels the desire of risk, for example.

The Stones adhere to rules, most of which are, of course, unknown. But there are two which have pretty solid emphyric evidence to be considered full fledged rules.   First, the Stone always brings you to itself. They are like bridges, in a way that they do not hurl you into the Time Stream and let you drop out in the same relative point in space, but they also bring you to their exact position in the time period you're going to, barring some margin for mistakes.   And the second rule is that the Stones have periods of activity, which are yet to be calculated, but possible to be determined while the stone is active. A Stone has a range of time it is active. If it works starting November 11, 1444 up until January 1, 1821, anybody from any moment in history inside this range can use the stone to travel back in time up to the first day of its activity. Time-travel to the future isn't possible without a Navigator from the future, of course. As soon as the Stone becomes inactive, Navigators stop feeling it, when they're close to it.   Nobody knows what defines that range of activity, but local events apparently play the part somehow. The most famous Stone in the world - one of the walls of Notre Dame de Paris - was active almost a thousand years, and it stopped working on April 15, 2019, the day of the dreadful fire.