Doctor Who: The Eye of the Jungle by Darren Jones, read by David Troughton (AudioGO, July 2011, 2 CDs (1hr 30mins), ISBN: 9781408468159)
In The Eye of the Jungle the Doctor takes Amy and Rory to the Amazonian jungle in 1827. Shortly after leaving the TARDIS they are surrounded by crocodiles. They are saved by Oliver Blazington, a mercenary/hunter who is there to capture animals for his boss Garrett who will subsequently exhibit them at London Zoo. However the locals are restless as domestic animals and people are disappearing and the priest's housekeeper refers to an "Eye" that seems to be involved.
Needless to say, the time-travellers soon discover the Eye for themselves and must save themselves from a fate worse than death...
This is an entertaining adventure, revealing the Doctor's empathy for not just humans but other animals too and he maintains his refusal to be used as a weapon by those who are taking the missing life-forms. I loved the fact that cd1 ended on a cliff-hanger worthy of classic Doctor Who tv episodes. Also that Amy and Rory don't require saving, rather the reverse.
David Troughton, son of 2nd Doctor, Patrick, and who appeared himself in the 10th Doctor episode Midnight takes over the narration duties this time round. His Doctor doesn't sound much like Matt Smith but does sound similar to Clive Mantle's Doctor in The Coming of the Terraphiles; his Amy is a bit wobbly but he does get Rory's inflection down to a T. Impersonations, intended or otherwise, aside he does a good job with the story-telling.
The sound-effects continue to improve. In the early days there was nothing, that was replaced by a smidge of music but now if someone drops something you hear a clang. They don't overpower the narrator this time round, which has been a complaint of mine before.
The Eye of the Jungle is a solid adventure in this series of "exclusive" audio adventures. My personal favourite so far has been The Runaway Train narrated by Matt Smith and the least engaging has been, The Ring of Steel which though narrated well by Arthur Darvill, has a run-of-the-mill story. (NB. I still have a couple more to listen to.)