The Doctor gave him a skeptical look. "Stuck? In a nexus point? How? Why?"
He stepped away, back towards the lake, and where his TARDIS should be, but wasn't. "And why isn't my TARDIS where I left it? It shouldn't have vanished the instant I stepped out of it, I didn't even hear the engines activate. Should have come back, too, they know how to use the quick-return switch."