The night is halfway done, yet the trials are far from over when the fifth watch is woken up to take their place. The moon has disappeared back into the clouds, leaving the sky in complete darkness once more. Even its aura of oppressive malevolence has faded, leaving behind...

...something a bit more mirthful, if impish. It starts subtly. Shoes are tied together. "KICK ME" is written on Castor's back in hard frost. Nozomi keeps tripping over something. Until, finally, after almost an hour of pranks, the culprits finally reveal themselves: having had their fun, five snow imps rise out of the drifts, claws extended and cackling. What do you do?