I won't give this a very good rating mainly because it isn't my kind of book but yet I made it half through, but by that time it was a chore because it was getting boring and kinda unbelievable even though it is mostly for kids. Probably a boy about the age of 10-14 might like it, doubt an older boy would like it and it isn't for anyone younger than 10 just because it has words they couldn't possibly know.
After their parents are lost in an accident, thirteen-year-old twins Grace and Marty are whisked away to live with their uncle Wolfe-an uncle they didn't even know they had. Uncle Wolfe is a vegetarian who has dedicated his life to finding cryptids-mysterious creatures whose existence has never been proven.
Just as the twins and their uncle are getting to know each other, Wolfe finds out that his nemesis, Dr. Blackwood, is headed to a Congolese jungle to poach a dinosaur and her clutch. Wolfe has to mobolize his team immediately if he wants to beat Blackwood to the jungle. And his team does not include the twins.
But Grace and Marty aren't easily left behind. With breakneck daring, they literally drop into the Congo and now must play a high-stakes game, where the prize is a dinosaur egg, and the penalty; death.