I've beaten the elite four and am about to go to Kanto but stopped and played around Olivine before leaving and realized I still don't have the seal case. Can someone please tell me where it's located? Also, is there anything else I need to do prior to going to Kanto? If I go to Kanto will I still be able to catch the 2 floaters after Kanto or should I be looking for them first?Any other pokemon I can't catch if I go to Kanto first? Already have Lugia but that'sthe only rare-ish pokemon so far I think. THANKS!!