Arthus is woken by a scream coming from the other bed in the hotel room he's sharing with Martin. So of course it was Martin screaming, and what terrified him so much is a big, hairy spider sitting on his blanket.

So it's Arthur to the rescue! Let our gallant Steward save Martin (possibly after some cooing over the spider which doesn't improve the situation as Martin really cannot see anything positive about the hairy beast) and comfort his Skip until Martin seems to have recovered.