Murder on the Safari Star Adventures on Trains #3 by Alice Pantermuller: In this third book of the middle-grade Adventures on Trains series by M.
G. Leonard and Sam Sedgman, amateur sleuth Hal Beck travels to South Africa with his uncle to a ride a famous train. . . and stumbles onto a murder mystery! Following his adventure on the California Comet, artist and amateur sleuth Hal Beck is looking forward to another railway journey with Nat, his journalist uncle--this time riding the historic Safari Star through South Africa.
Then the already eventful journey becomes even more so when one of their fellow passengers dies on board! Accident. . . or murder? With help from a new friend, Winston (and his mongoose, Chipo), Hal is determined to figure out if a murder has really taken place and, if so, who among a long list of suspects is the killer--all before the Safari Star arrives at its final destination.
Perfect for 9 years and up readers and fans of social situations.