On Lair of Arachne, when you go down to sub-level 1, there are 3 stairs leading down to sub-level 2: west, middle, and east.
Take the middle one. In the south west part of the map is a chest that you need a lock pick to open.
The death scroll is in there.
Not sure what you mean by "I am blocked"?. Do you mean you dont know what to do next? If so, this will help:
SpoilerShow
On the Lair of arachne level, once you destroy the spider, it drops a "spider-silk cloak". This will also set off the horn and
fireballs. Make your way back to the surface, dodging the fireballs etc. Once you are back on the first level (ruins, sea etc), go to Eurayle who is trapped in
the force field. Place the spider-silk cloak on her altar, and go from there...
In answer to your questions: "small bones" refers to an item you collect from sub-level 2 of the Chamber of Illusion. You'll figure
it out once you find it. Son of Ares? On lair of arachne sub-level 1 you would have collected a red skull with the ice dagger. Read
it's inscription.
