Juvenile book. Middle school. Adventure mystery story. Cover had a large idol with green (?) eyes. Huge eyes. Boy visiting a foreign country with parents and somehow has to return an stolen idol to a temple. Lots of danger and suspense. ie., almost hit by car. Falls in a river. Etc. Read during middle school in the mid to late 90s.
The Turquoise Toad Mystery, by Georgess McHargue?