He thought he would be safe, that they all would be, if he no longer remembered his name was Elijah Mikaelson, that he was an Original vampire, that he had siblings named Niklaus, Rebekah and Kol.
Yet removing his memories did not remove his need for blood, did not remove who Elijah was.
As Marcel sees that Elijah finds him familiar, sees how the roses wilt and the water turns to blood when he unknowingly encounters his siblings, he realises that in compelling Elijah he had not removed the danger at all.
The Originals, Elijah Mikaelson and Marcel Girard
Yet removing his memories did not remove his need for blood, did not remove who Elijah was.
As Marcel sees that Elijah finds him familiar, sees how the roses wilt and the water turns to blood when he unknowingly encounters his siblings, he realises that in compelling Elijah he had not removed the danger at all.