Isaiah liked helping in the garden. It was something he could put his whole body into, and let his mind go blissfully blank, if that was what he wanted. He always slept well that night, too.
He'd stood up to get a drink of water, and he'd turned his back to the shed. Which is why he missed the black shapes coming towards him and JJ, and consequently didn't see one of them reaching for his head. He was barely aware he was falling until he hit the ground. His head started to throb, getting up suddenly seemed utterly impossible.