On the surface, Martha catches up to Gurney, but can do little to stop him without a weapon. At the same time, however, Baltazar arrives riding Caw. Gurney shoots down Caw, but is apparently dispatched by Baltazar off-screen. Caw dies from the damage caused by Gurney's shot while the Doctor and Martha comfort him, claiming he was promised "all the gold he can eat". Baltazar then takes the two hostage, forcing the Doctor to show the way to "The Infinite". He also reveals that Martha's "brooch" is actually Squawk, Caw's child, which flies to the body of his parent. Once the Doctor locks in "The Infinite"'s location, Baltazar takes control of the TARDIS – as flying the TARDIS involves little more than a button-press, he no longer needs the Doctor, and knocks him out with a blast. He leaves the Doctor to perish in the snow.