You fortify the pit and send a messenger to Ankurvat. Hopefully he will get to them fast despite the winter conditions.
967 AD, Midwinter
A messenger from the capital has arrived; Lametania once again got into financial troubles, this time not Damdamian-related, and sought some money from the your Treasury; the court has decided to send the money south.
967 AD, Late Winter
One night, screams and shouts of alarm erupt about the camp. A pack of lizardmen exited the pit!
3*
You have the unfortunate distinction of getting a lizard tearing into your guard detail! The wild being with a crude hammer rushes you!
7*
But you easily slay the beast, despite smoke and darkness working against you. And then you lead a glorious charge that sees many lizards (and humans) die in a bloody carnage!
By the time moon begins its descent toward the horizon, the battle is over and you're surrounded by corpses of lizardmen. Your soldiers hail you as a 'Lizardslayer', in respect of your victories against the lizards thus far!
A week later, the messenger sent to Ankurvat arrives.
"My liege! The dwarves of Ankurvat said they have no time for you and your troubles this winter, but said that they might come in Summer time if you want."
A) Pfft, by then we will be overrun by lizards. Time to seal the pit ourselves and go home!
B) Time is of the essence and we need dwarves; let's send the envoy to Zasitost instead!
C) So be it, we will watch over the pit till Summer next year!