The Superlative Supersleuths have a new case to solve. Money is appearing mysteriously in unexpected places around the city. UFOs have been spotted in the sky. If aliens are trying to take over, they have been very careless indeed! Will the Supersleuths be able to foil their diabolical experiments, or will everyone end up being mindcontrolled?

This madcap adventure of the supersleuths takes the reader on a roller-coaster of possibilities, but the solution of the case is both, more prosaic and more sinister than the theory of aliens that the Supersleuths’ classmate Vipul is spreading.