Doctor in need of assistance
using time travel I have seen the next three episodes and this is the "companion season". Midnight showed just how much the Doctor needs a companion who can help convince the mob that he can defeat the alien threat. Usually if the Doctor starts without an assistant someone steps into the…

Your song must end
The Ood told the doctor that his song would end soon, now that River Song is dead his song is over. The Doctor and River must meet again soon before the Doctor regenerates because she knows him in his current body. don't you love time travel?

your song must end
The ood told the doctor that his song must end soon and now it has. the doctor must meet River Song soon because she knows him in his current body before his next regeneration. Don't you love time travel.