In an eerie underwater cavern, human hands reach out from the seabed searching the dark water. The RBI are sent on a watery quest to find out what lies beneath. How do mysterious happenings on the sea at night, an angry school of sharks, and zombie ghost stories link with this creepy new mission? The RBI are on a mission to search out the truth!
Another great book the fourth in the series and I'am still enjoying them and my son has started to read them and because their short and interesting he is actually reading through them quite quickly and is loving them. This books about an underwater cavern were a human hand is reaching out of the seabed searching the dark water. The team are sent on a watery mission to get to the bottom of this mystery if you want to go on a wet and unsettling mission with the team please read this book it was a very different and interesting story.
This is my favorite one so far in the series. I really enjoyed this one and it was non-stop action. Page 114 (the last page of the story) has a RBI 'text message' fact that isn't true. It couldn't have happened millions of years ago if the world is only about 6,000 years old.