I am level 20..can I get a pet to fight with me now/ If so how do I do it? Thanks.:)

at lvl 25, buy a summon book and an evil racoon summon doll. use them both, thats it, to evolve, you need to get 10 evolution tickets from clara, and you evolve through the creatures in stages, each more powerful than the next. after a certain point you will need to use evolution stones, these are very expensive, but summons can be fun