This is the first Med Center book I read, and think it's better than Med Center #1 - Virus. It is very action-packed, and it shows the strong bond between the main four characters - Susannah, Will, Kate, and Abby. When one of the four are missing, the others are very worried.
I also like this book because it shows the romance that is trying to happen between Will and Susannah. Will likes Susannah a lot, and Susannah likes Will a lot, but neither of them know how the other one feels toward each other. When Kate is locked in the library, and the library is flooded up to the ceiling, it's Jeremy (yet another semi-main character) whos comes to her rescue. Jeremy has had a crush on Kate since they were in elementary school, and now that crush pays off when Jeremy risks his life swimming to the library to look for Kate, and swimming away again, only to come back with a boat and save Kate's life.
Susannah's twin brother, Sam, has a flood party on the riverbank. Not a good idea, as Susannah, Will, and Kate know, but Sam couldn't live a day without being at a party or having one of his own, so he invites about a dozen people to this flood party. The water rises quickly, and Sam convinces a few people to leave while there's still time, but the rest are like Sam and they just want to party-hardy all night long. What will be in store for them?
I think this is a really great book. I loved the suspense and action and I think you would, too!