Episode Name: Love In The Time Of Dragons
Air date: 11/6/2010
Summary: Merlin is pleased to get acquainted with a different side of his mentor when Alice, an old flame of Gaius’s, arrives in Camelot. However, when the warlock discovers that she is under the influence of a Manticore, a creature from the Old Religion, Merlin has no other choice but to tell the physician about Alice’s evil scheme. Blinded by love, Gaius refuses to believe Merlin’s reveal and their close bond suffers the consequence as both friends fall out. With the King in danger and all evidence of the wicked plot pointing to Alice and the mean magical creature that has possessed her, will Merlin be able to make Gaius see sense before it is too late?  

Watch or download Merlin – Season 3 Episode 9 – Love In The Time Of Dragons at below links.