Love Potion Number 10 by Betsy Woodman. The book is being released by Holt Paperbacks on May 14, 2013.
Amazon says this about the book: In the newest Jana Bibi adventure, Jana, Mr. Ganguly, and the gang are back as their small town in India is rocked by an espionage scandal and a homemade remedy that has love on everyone’s mind
The Jolly Grant House still welcomes all its visitors with the sign Jana Bibi’s Excellent Fortunes hanging proudly outside its front door. Jana’s fortune-telling has brought a lot of attention to the small town of Hamara Nagar, and now that the dust has settled and the town is safe from the threat of being flooded by a government dam, all eyes are on the Scottish-born card-reader Jana and her feisty, loose-beaked parrot, Mr. Ganguly. Some people, though, are not to be trusted, and Mr. Ganguly finds himself the target of a potential kidnapping that puts Jana and her household on edge.
Meanwhile, love is in the air and, thanks to Abenath’s Apothecary, it’s also in a bottle. Abenath has created an intoxicating brew that he calls Love Potion Number 10, which seems to have Jana in a tizzy. While she explores her newest hobby, dream interpretation, her head is swimming with questions: Is a new love possible at age fifty-nine? If so, would she ever marry again? All around her she sees different kinds of love and connection—family, arranged marriages, chemical attractions, even intercontinental romance between people who have only met through letters—so when an old flame arrives and rekindles long-gone feelings, Jana begins to think that that Love Potion Number 10 just might be the magic elixir its inventor thinks it is.