Thanks to OP at Once and Futures for the scans. Warning: contains spoilers!

( Spoilers behind the cut )

Via What's on TV:

( Spoilers behind cut )

( Spoilers under the cut )

Airs 22 October at 8:15 PM.

( Spoilers under the cut )

Merlin News
♦ The BBC Merlin site now have a page for episode 4 (Aithusa) with the synopsis and episode cast list here.
♦ According to SPACE Channel’s Twitter, Merlin season 4 will air in Canada this winter, but no exact date has been announced yet:
SPACEchannel @afallenfeather Merlin season 4 will come to SPACE this winter, but we haven't ( Read more... )

Merlin Episode four will air on Saturday 22 October at 8:15pm, BBC ONE.

**SPOILERS PAST THIS POINT**
*
( Spoilers behind cut... )