How do you make things follow you then disappear ?

Trying to make ghosts, no killing involved

Are there Humanoids involved in this? If the ghosts have Humanoids then you can use

Humanoid:MoveTo(Position, Brick)

Whereas Humanoid stands for that what it means - the Humanoid object. Position stands for the position, you can also use something like Torso.Position here. Brick is whatever the Humanoid will walk over, just set it to the baseplate or whatever is within the terrain, that should work fine. Don't set the brick to anything of the ghost/model itself! This resulted in glitches when I did that.