Summon a giant hot dog to placate it. A hot dog made of insects. Giant insects. Maybe giant centipedes would be better? Giant bugs, although not as giant as the spider.
You SUMMON a GIANT CENTIPEDE.
The INSECT(?) doesn't seem to notice.
Cast a spell to make you immune to webs and spider venom, then try everyones' ideas of talking to it.
This is good, but we need to keep an eye on our magical reserves. Can we get a status update on that?
You don't know any spells that could protect you from webs, at least not off the top of your head.
You cast MARDUKE THE SICKLY'S RESISTANCE TO POISON, which should give you some small level of protection against poison and disease.
Your MANA POOL is nearing its bottom fifth, and you are beginning to feel the burn of MAGICAL EXHAUSTION. You still have enough for at least one or two big spells, but it's best not to try and pull anything too exerting.
Like turning yourself into a large jungle cat. That would be a bad idea right now.
Discern purpose of the two dresser drawers in front of the insect. One appears to be filled with kitty litter? At any rate, cast spell of communication in order to facilitate this.
You surmise that this room held a large number of drawers, before it started falling apart and unravelling into nothingness due to shoddy construction.
One drawer was empty before you summoned a centipede into it. The other is filled with, unless you are mistaken, curdled milk.
Curdled milk that you almost dunked your face in. Ew.
The SPEAK WITH MONSTER spell is still active, and you use it to ask why the INSECT(?) is attacking.
It replies with a long screech, which translates as a string of curse words.
Very rude.