How to save Sal's mission (Cave of Time and Space-Old Hillsborough) from beginning to end?

In the old hillsborough in Hillsbrad, it has entered the cave of time, and there are 5 6 kinds of conversations before you go in. Bring explosives. Sal is in the basement of the castle. Follow sal. Pay attention to the blue. You need to do the door task of the storm fortress ahead.

Alex Tassa, the guardian of life, threw an acorn into the second well of eternity made by Illidan in Mount Hyjal. The fruit germinated and grew into a big tree.

Azeroth:

The world in the real-time strategy game Warcraft series produced by Blizzard Entertainment and the massively multiplayer online role-playing game World of Warcraft is the name Titan gave to a tiny planet in the boundless darkness. The only continent in the world was named "Land of Eternal Stars" by Titan Kalimdor.