I travel lands both near and far, Without a compass, map, or star.

A faithful guardian, fierce and true, With many legs, but not a shoe.

I hold treasures locked within, A wooden shell, as tough as sin.

From Ankh-Morpork to the Rim, I follow him through thick and thin.

No thief dares to cross my path, For they fear my wooden wrath.

Part of a tale, both comic and tragic, I am a marvel on the turtles four.

What am I, with no need for luggage tag,

That follows the wizard, without a lag?