"The Heart is susceptible to the spell effect "Command Creature". If commanded, it will not move after the Nerevarine because it has no movement animation, but if the Nerevarine has an NPC offering the "Travel" service accompanying them (for example, a Mages Guild Guide commanded by the effect "Command Humanoid"), the Heart will teleport together with the Nerevarine and stay at the target location afterwards."
...CAIUS I HAVE A GIFT FOR YOU