Daneel couldn't help but raise an eyebrow when he heard this. He hadn't even considered that it was possible to put in such countermeasures in the Grand Inheritance, but when he considered that it was probably an item made by the Emperor himself, he realized that there must be many more that the man hadn't stated, yet.
Also… It really was a brilliant plan – to use those who obtained the Grand Inheritance to defend the continent, which was his goal, and then kill them off before they became a threat.
He could only guess how it worked – it was most probably some kind of spell which would look for the condition that anyone who was going to give up the Grand Inheritance to someone foreign, and when that happened, it would result in the death of the possessor.
