Magnus pushes off his swing again and moves behind Galahad. He catches him on the backswing, gripping the little metal triangles that hook the chain into the swing itself, and then backs up even farther, pulling Galahad higher.

Then, putting his head down, he pushes, running forward and launching Galahad high enough that he can scamper forward underneath him, circling back immediately so he can keep the momentum going with more sedate pushes.