Image source, PA Media

The visible breath of the players hints at the chilly weather conditions in the Scottish capital - there's been a dusting of snow today and temperatures have consistently been below freezing this week.

Awfy pretty though.

And breathe.

Bath take a four-point lead into the changing rooms after a highly- entertaining first half.

That's despite seeing two players yellow-carded by the way.

If the second half lives up to the first then we're in for a treat!

Image source, Getty Images

Castres win the penalty but can't really go for the line-out with their hooker in the sin-bin so point to the posts.

In classic French rugby fashion Castres have a place-kicking scrum-half and Jeremy Fernandez, who has been excellent from the tee tonight, again slots it to reduce the gap to four.

Bath are in the referee's good side at present as Castres are giving away a string of penalties.

It's very kickable but Bath opt for the kick to the corner and a five metre line-out.

A magnificent first half for Gloucester.

Edinburgh trudge off with work to do.

Edinburgh claim the lineout, but then lose possession forward and Gloucester have a chance to clear their lines.

The visiting players celebrate like they have scored a try down the other end.

Bath win a timely scrum penalty and Finn Russell can nudge it into the corner.

Excellent attacking position.

Can they make it count?

Edinburgh force a penalty after Gloucester infringe at the breakdown.

Ross Thompson kicks to the corner - big chance coming...

Castres wing Christian Ambadiang takes off on a characteristically powerful run down the flank - the Cameroon flyer takes some stopping.

Bath are back in possession though - the game has become a little stop-start after those yellow cards.

The visitors have to cope with another five minutes or so of being a player light.

Andy Burke
BBC Sport Scotland at Hive Stadium

There's a very healthy contingent of travelling Gloucester fans and they are making their voices heard.

The atmosphere is great as this match swings one way and then the other.

This is odd.

After just half-an-hour, Edinburgh change their entire front row. James Whitcombe, Harri Morris and Ollie Blyth-Lafferty make way for Pierre Schoeman, Ewan Ashman and Paul Hill.

Ashman's first act is to have a lineout throw pinched by Lewis Ludlam.

Gloucester extend their lead as George Barton splits the posts off the tee.

Bath were momentarily down to 13 men but Beno Obano's time on the naughty step is over as Will Muir's begins.

The upshot being that Bath will play 20 minutes of the opening half a man down.

Gloucester hooker Will Crane - a mortgage advisor by day - is on loan from Hartpury and is struggling a wee bit at the lineout.

Edinburgh pinch possession, but can't maintain their own attack. It's nothing if not scrappy in the Scottish capital.

Back come Bath again and have a penalty advantage.

Ben Spencer's cross-field kick is then contested by winger Will Muir and Castres full-back Theo Chabouni.

The Castres man wins the contest and Muir then pulls him to the ground while they are both still up in the air.

It looked an ugly landing and Muir is shown a yellow card - Bath's second tonight already.

Edinburgh almost get away down the right flank, but the ball won't quite sit for Darcy Graham.

The hosts are forced into a change in the centres - Matt Currie looks to have pulled a hamstring and is replaced by Piers O'Conor.

Andy Burke
BBC Sport Scotland at Hive Stadium

Frustrated at his failure to gather a pass from James Lang that would have set him free, Darcy Graham has just taken his frustration out on an advertising hoarding.

Good strike to be fair. He's left a great big hole in it.