What have the Black Hand Gang done? Have they kidnapped Wills, a brilliant young inventor? Where is he? Where have they taken him?
The teams are getting ready. The Oxford – Cambridge Boat Race is only weeks away and Sam’s brother is on the team. But what’s happening at the boat house? Why are some people from the team ill? Was the fire at the boat house an accident? Sam and his friends don’t think so, and they need to find out.