10 teasers for Doctor Who Series 8 Episode 12: 'Dark Water'. Hand-picked by Life, Doctor Who & Combom blog. 

1. "There is no third option"
2. 3W
3. We know who she is...
4.  "Can you hurry up please or I'll hit you with my shoe"
5. There's a ton of scenes with Chris Addison's character, Seb.
6. "Death is not an end"
7. "Who maintains your heart?"
8. Dark water
9. "I'm feeling a bit emotional at the minute"
10. Missy and the Doctor really hit it off...