By Dan Primack
January 30, 2014

FORTUNE — On Monday morning, I received a tip that Matt Blodgett had left North Bridge Growth Equity. My immediate reaction was “that can’t be true.” After all, the guy had been promoted to general partner just last August, two months before the firm closed on a new $580 million fund. Moreover, he led a new deal in December and was responsible for Proto Labs (PRLB), which is NBGE’s only portfolio company to have gone public.

But I went to the North Bridge site, and saw that Blodgett was no longer on it. So I called North Bridge and asked for him. I was transferred to his assistant, who offered to leave a message. When I noted that Blodgett was no longer on the website, she sounded surprised. Nothing to see here. I also sent an email to his North Bridge account, which didn’t bounce back.

Related: North Bridge loses two partners

So I rang up North Bridge’s outside PR rep at Edelman, who said she’d find out what was going on. That was Monday afternoon. Since then I’ve rang her cell a few times and dropped two more emails. No reply whatsoever. Similar radio silence from a pair of North Bridge partners I reached out to. And, when I called this morning, the front-desk receptionist was still pretending like Blodgett was at his desk.

I wish this was the part where I tell you what’s really happening, but the truth is that I’ve only heard idle speculation. What I am now certain of, however, is that Blodgett left abruptly late last week. And apparently it wasn’t about him taking another job elsewhere.

As for his portfolio companies, no new news yet. A Proto Labs spokesman says that Blodgett remains on its board of directors, while a spokesman for WP Engines (the new deal he did last month) declined to comment.

Hopefully I’ll have something to share on this shortly. At the very least, this is all very, very strange.

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