Crime and carpetbags

"Now that Maeve Merritt has surrendered Mermeros, the djinni she found in a sardine can, she expects her life in London will be dull as dirt. But villains from Maeve's previous escapades are still searching for the djinni, now in the hands of Mr. Poindexter, the adoptive father of Maeve's friend Tommy. When Mr. Poindexter tries to use one of his wishes, he and Mermeros go missing--and without a guardian, Tom will be forced back to the orphanage. With the help of magical flying carpetbags, Maeve, Tom, and their friend Alice soar off to find Mr. Poindexter and that rascal, Mermeros, before the djinni's fabled wishes fall into the wrong hands"--Amazon.