User blog comment:Barry19/TDA S1 EP1 - The Keys to Infinity - Hints and Teasers 1!!!/@comment-27270572-20150623171959

1)  The protector is .. a dragon? This sounds awesome and I am guessing the dragon is either protecting the key of time or the ultimate weapon.

2) What is taulas? Not sure why it should not be left alone for too long. Perhaps a villain for the upcoming series which the Doctor has captured and is trying to keep away from the action.

3) Ultron again? Brilliant to hear! This is the mew two character I am guessing and he probably is trying to control Earth or collide a few planets ... just normal super villain things.

4) The Doctor has obviously been called for something big and will probably reply with something like "I've been busy" or alone those lines.

5) How sinister this could be! If the person saying it is being sarcastic then it could be brilliant. There must be some sort of evil beast guarding a key.

6) I assume there will be a reference to Gravity Falls or some aspect off it like the future episode The Time Traveller's Box being related to the Gravity Falls episode A Time Travellers Pig.

7) Who? What? Why? Please don't eat me! Sounds like the same beast that's job is to guard the key is no happy that some others are trying to make him unemployed. In all seriousness it does sound like a side character is saying it with perhaps Clara or even a completely new character.

8) I have not a clue, after 10 minutes I decided to try to cheat the process but it came up with gobbity goop. I am guessing this is not a Caeser Code puzzle. Any hints to solving it?

9) The key to the chain? Why do they need to open something? Also I bet something is in that water preventing them from grabbing that key.

10) What a nice line! I think it is either the Doctor or Clara saying it as it seems to important for a side character to mention.