Riley and the Rigged Bingo Cards

Bingo night in Maple Grove has always been competitive, but Grandma Martinez knows the difference between luck and something that smells suspicious.

When the same handful of players keep winning week after week at the Senior Center, Grandma Martinez starts keeping notes. Dates, winners, seating charts, card sellers, and every strange little detail no one else seems to notice. Most people think she is taking bingo a little too seriously.

Riley Martinez is not so sure.

After Grandma hands over a notebook full of patterns no one can easily explain, Riley turns to Sherry, Stan, Kiki, Wendy, Darla, and the rest of the Maple Grove crew for help. Soon, what began as a few suspicious wins leads to side stacks of cards, uncomfortable winners, strange supply boxes, and a trail that points somewhere no one expected.

As Riley digs deeper, the mystery becomes about more than bingo. The Senior Center needs repairs. The town needs answers. And someone may have decided that a little unfairness was worth it if the cause seemed good enough.

But Grandma Martinez did not come to bingo to be made a fool of.

With humor, heart, and plenty of Maple Grove chaos, Riley and the Rigged Bingo Cards is a cozy mystery about fairness, community trust, second chances, and the importance of listening to the person with the notebook.