Yea sure I will give you info although your friend Marren isn't so much excited I think!
They play 2 gigs Thursday and Friday 15-16 of April at Rodon Club (is the same venue with the two Anathema gigs).
The address is Marni 24 ,is near the center of Athens -you can find it easily with a map or from an internet map I suppose.
The Friday gig starts at 21:30. The ticket costs 33 euros - a bit expencive comparing also to the Anathema tickets that cost 25 euros.
Also note about the two Athens Anathema gigs that on Saturday it starts at 21:30 and on Sunday 20:30.