A Mysterious Twin of Epsilon-Aurigae

We present our recent discovery of a mysterious twin of Epsilon-Aurigae from DASCH. It showed a 4 mag decline which lasted for 3 years in 1940s, and now, 68 years later, is at decline phase again. The magnitude changes in optical and NIR bands are comparable, indicating opaque bodies are blocking the light. We suggest that it is an eclipsing binary system, similar to Epsilon-Aurigae, probably caught in a short stage in binary evolution. We will describe the DASCH discovery data, our current follow-up observations, and a model for the system and its evolution.