This is definitely awkward... I''m going to need to break the spike, but it''s a solid 10 cm in diameter. Since everything is pre-soaked, I''ll only need to use spit for now.
If the wall is anything to go by, this will take a very long time.
Having successfully scratched away the surface layer of a ring around the spike I''ve run into another issue. I can''t reach the pointy spike to create new wounds.