Nana's Summer Surprise

In this third book of related titles, our protagonist must face one more hurdle in accepting his Nana's new "family." Nana's new husband Bob has a grandaughter named Hortense. They were friends last summer - but over the winter she's changed and the tentative friendship they shared seems a thing of the past. At the cottage again for a summer holiday, the protagonist is horrified to discover that Hortense is no longer likely to enjoy climbling trees and running around. She's grown tall, wears ski