172. The Mountain of Adventure by Enid Blyton

 The four children, their parrot Kiki, mother/aunt and "Old Bill" plan a quiet holiday in North Wales. However, as usual, adventure finds the children when they go off riding donkeys on a camping trip. First published in 1949 this story does not meet today's standards of political correctness particularly in Blyton's handling of black and Japanese characters.

169. The Castle of Adventure by Enid Blyton

Jack, Phillip, Dinah and Lucy-Ann befriend a feral "gypsy" girl named Tassie who joins in their adventures when exploring an abandoned castle with a mysterious past. Secret passages, hidden rooms and suits of armour all figure in the plan to capture the criminals and recover of the treasure.

168. The Sea of Adventure by Enid Blyton

The children are off of school so that the can recover from the measles. When their mother falls ill, their old friend Bill agrees to take them to a remote island in Scotland. He is hiding out from a band of rogues that caught on to his trailing them. As always, it becomes an adventure featuring their parrot Kiki, rats, puffins and "the enemy".

166. The Valley of Adventure by Enid Blyton

 After stowing away on the wrong airplane, the children find themselves in a remote valley hiding from treasure hunters. Using their wits and survival skills, the four kids and their amusing parrot Kiki help capture the rogues and save an elderly couple who have been guarding the treasure for years.

151. The Lightning Thief by Rick Riordan

This first book in "The Olympians" series is based on the premise that Greek gods are truly imortal. Set in today's world it is Greek Mythology retold with an ironic twist. Interesting characters and exiting battle scenes make the story come to life.

148. The Adventurous Four: Stranded! by Enid Blyton

Siblings Pippa, Zoe and Tom visit their friend Andy who takes them to see the Cliff of Birds on his fishing boat. They inadvertently discover that the island is being used by smugglers and get taken hostage. Quick thinking helps them turn the tables and escape.

144. Five Go Adventuring Again by Enid Blyton

The three cousins are back at Kirrin Cottage for Christmas Holidays with George and her dog Timmy. A tutor, Mr Roland, has been hired to help the boys catch up on their studies. Uncle Quentin's very important research notes go missing and the Famous Five solve the mystery and save the day.

143. Five on a Treasure Island by Enid Blyton

In this first book of the Famous Five series, first published in 1942, siblings Julian, Dick and Anne meet their cousin Georgina, who wishes to be called George, for the first time. George is unfriendly at first but the children win her over and she willingly shares her island with its derelict castle and submerged shipwreck. During a storm, the ship gets washed up on the beach and the search for a long lost horde of gold bars begins. George's dog Tim becomes the fifth member of the group.

140. White Shadows by Elwy Yost

TV talk show host and film historian, Jack Parris, and his German research partner Georg, have been obsessed with unravelling the myth of actor and film producer who is known by at least 18 pseudonyms including Philip Kurzon. Kurzon's magnum opus is a film of unprecedented length, 43 reels and 8 hours 10 minutes,  that has only been viewed in public. Add in a romance, Nazi and resistance operations, a primeval tropical forest and you've got a page turning plot.