They decided that the best thing to do was to try to get the stone again. They'd have to sneak up on Karyn and Sarah ... otherwise Karyn could see them coming and use another wish.
Jon and Alan waited outside Sarah's house, hoping to catch Karyn coming outside, so they could either jump her or sneak in.
A few minutes later, Karyn opened the door. They jumped out from their hiding spot and took her by surprise. Then they tackled her and tried to grab the stone before she knew what was happening.
