Hope
In The London Eye Mystery hope is the most important theme. Every character in the book is hopeful that Salim will be found alive after being missing for days. Hope is everything. Gloria, Salim's mom, is the most hopeful. On page 76 Gloria uttered, "Salim is my baby. He would never run away from me."
Love
In the London Eye Mystery love is another theme. Love is important because if Gloria hadn't loved and cared for Salim so well then Salim might of run away forever with Marus, his friend. Everyone was very supported and loved each other very much during the time Salim was missing. For example, Faith, Ted's mom, loved and cared for Gloria during this depressing time.
Friendship
In the London Eye Mystery friendship is an additional theme. Ted stated that he only has a few friends, his mom, dad, and teacher. Towards the end of the book he had a lot more. Now, instead of only 3 friends, Ted has 6. Ted is very happy now. He is excited that he now has more friends and has people to be around and not alone all the time.