Help me choose a book for my aunt

My aunt has a long flight coming up and I know she won’t buy herself a book even though she likes to read. This is the most important detail - English is her 2nd language but she speaks it very well and is fully committed to English. So the book suggestions i am looking for must be English that is current English, not old time/early 1900s or earlier type. I know she likes feel good stories and adventure. I’m open to novels and short story books. Please no controversial topics, no gore, nothing about war, just a pleasant feel good book. I believe she doesn’t care for fantasy. Thank you in advance!