The Puzzler's Mansion by Eric Berlin

This book is about Winston the puzzle addict who was invited to a famous piano players house for plenty of puzzles and games. When the first winner Amanda wins Richard Overtons Elgar pgoram it gets missing. Then the next puzzle goes well but when Winston wins a prize, he gives it to the houses maid. The next day Winston prize goes missing. When Winston and co. find out the theif they are locked in a secret room

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-Kevin