Shadow Tower Abyss happened in 2003.
Shadow Tower Abyss was created on 2003-10-23.
Shadow Tower happened in 1998.
From the Abyss happened in 2008.
Deep Abyss happened in 2003.
It was found.
The Shadow of the Tower was created in 1972.
Shadow Tower was created on 1998-06-25.
you can obtained it's scan data at shadow abyss
If you mean in RuneScape, then they are in the Abyss, and the Canifis slayer tower.
As the question is stated, Tom is standing IN THE TOWER'S SHADOW. If so, then Tom can't cast a shadow of his own, because he is not illuminated. Let's assume the question means to imply that Tom's shadow is measured AT THE SAME TIME that the shadow of the tower is measured, and kind of NEAR the tower, so that the sun casts both shadows from the same place in the sky. If this is a valid assumption, then the tower is 12 meters tall.
NO
After Shadow Pokemon Lab, it should open up. Exit wherever you are to go to the map. Just below SHadow POkemon Lab should be Realgam TOwer.