You can find Reanimal's secret code in Chapter 1: Dead in the Water. However, note that the secret code is the same in every game, so if you've already passed this chapter and just want the answer, go ...

The Cipher Machine is a puzzle you’ll find in Indiana Jones and the Great Circle’s Himalayas during “A Harsh Climb.” As you climb through the frozen KMS Kummetz, you’ll eventually reach the Officer ...