Since Erik and his friends needed to get to an island, but it looked like there wasn't an easy way to reach it, in the end, most of them agreed on the fact that the only way to get there was to use shapeshifted clones to fly there. This was risky, but they thought it was the best way to arrive with no one seeing them or messing up their mission.
Erik had lost enough of it already, and he wasn't willing to waste more than he already did. As soon as they got control of Hin, he would start his attack. It was just that he would not do it without an army behind him and protecting Mira, Amber, Emily, and June.
There was a reason Erik didn't just rush to Maynard Island after he got the Chimaeric Demons, and that was because meeting the Leviathan Serpent truly impressed him. No, impressed wasn't the right word to use. It terrified him.
