Jeff Bezos has left a glowing Amazon review for the children’s book, The Fly who Flew to Space, written by his fiancee, Lauren Sanchez. Published on September 10, the illustrated book follows a fly named Flynn who pursues her dream of becoming an astronaut and ends up travelling to space in a rocketship.

Now, her former yoga instructor in Los Angeles, Alanna Zabel, is suing her, claiming she had a similar idea first, TMZ reports. The woman, who sent two cease and desist letters to her former client back in the spring, is representing herself, without an attorney.

Jeff Bezos praised Lauren Sánchez' children's book on Amazon. The next day, a yoga instructor sued Sánchez for theft of intellectual property.