He has to come here under his own power, of his own free will.

Milligan is sent up, but doesn't come back under his own power, after being hit by a mortar bomb:

Still, she did come to the table under her own power.

It came here under its own power, then?

But he had come into the casualties station half an hour before, moving slowly, but under his own power.

Ordinarily such visitors left the ship, inserted themselves, and came back to it inert, under their own power.

The being actually came into the ship under his own power by a method which could not be foreseen.

Stewart came out of the car under his own power, but was helped to the ambulance where he was taken to the infield care center.

Joe said: "A lot of runaways come back under their own power.

For them to come back to Baba Yaga's house under her power would be sweet indeed.