immediately afterwards , silver-brown smoke rose from the roots -- -- a strange purple mixture that seemed to be composed entirely of electricity leaped from the bottle onto the roots and crawled all over them like hyperactive spiders -- -- a sickly yellow mixture that smelled like rotten eggs , sewage , and puke seeped into another set of roots , turning them pale -- -- a blue , glue-like chemical adhered itself to yet another set of roots , which gradually began to glow -- -- and many more concoctions were flung , many more effects took place -- some invisible but most with interesting if not bizarre shows .