Good morning, everyone. For those who are into mapmaking.
Start a hero near a garrison with a neutral player (where there are people) and the last obelisk. Stand facing your main castle, and start walking from the beginning of the day. Then, look at the map. The trail of your hero on the map will end at the location of the tear.
The trails on the map only appear in the unpatched version of the game, and the tear is generated randomly each time. This has already been mentioned above.:confused: