Dead End — Chris Wraight

Deep freeze

Trapped on a planet being consumed by a runaway
ice age, Colonel Sheppard and his team discover a
people -- and a mystery -- long disregarded by the
Ancients.

With the Stargate inoperable and their Puddle Jumper
damaged, there is no way for Sheppard's team to
escape the killing cold. Death seems inevitable until
they are rescued by the Forgotten, a people abandoned
by those who once protected them -- and now
condemned to witness the slow death of their world.

But something terrifying haunts their tunnel homes.
When Teyla disappears and Ronon goes missing on
the deadly ice plains, Sheppard and McKay risk losing
their only chance of getting home in a desperate
bid to find their friends and save the Forgotten from
extinction...