Friend hasn't been on in 2 days?

i talk to a friend on AIM all-most everyday known him for 2 years. we do not have each others cell phone numbers or stuff like that cause we live about 3k miles away. he lives in around north east america i live in OK. and the day before yesterday we started playing this new game called guild wars. and he had to go when we started so he said tomorrow he will be on at 7 (my time) 8 his time. and we can play a couple of hours together. well.... he never got on and neither did his sister. cause they have dial up and share a line together. but neither of them got on yesterday or today.... could they have gotten hit by a tornado up there? or what. and what should i do? wait it out or what? 10 points to best answer.