Hydrox sounds like a Sub-mariner foe.

Thank you, I just read the synopsis and it isn't clear to me what happened.

marvel.fandom.com/wiki/Tales_to_Astonish_Vol_1_87

Do you have any additional info?

Thanks again!

He's done multiple times over the years. From memory:

He took over Strange's body around Dr. Strange: Sorcerer Supreme #1 (the 80s series)
A bit later in that same series he masqueraded as another Faltine and travelled to Earth to convince Clea to lead a revolt against Umar.
I think he managed for a very short time to manifest on Earth in the Tony Harris/Paul Chadwick mini in the early 2000s.
In the recent Annihilation, he travelled to the Earth dimension, but not Earth itself.

Does anyone remember how the First Comics bankruptcy played out? I read the final issue of Nexus the other day and there's no indication it would be the final issue. In fact, it ends with a cliffhanger. 

Short version is that First Comics acquired the rights to the Classics Illustrated name and tried to launch a new series of graphic novels, under the name, with modern talent, such as Gary Gianni and Bill Sienkiewicz, in the Prestige format. They spent a lot of money getting it off the ground and to place it in major book chains, including buying display space in Waldenbooks and B Dalton Booksellers, the two biggest mall-based book chains, of the time. They spent a ton marketing it and, though there are some fine works within there, they were not a great success and it killed their cash flow, leading to their bankruptcy. That was the key factor, though there were other issues behind the scenes and there was a big exodus of talent, by 1988, who went back to DC or Marvel.

Mike Gold left the company in 1986 and you quickly see things changing, within the line. It had been his baby, from their launch in 1983 to that point, which included a lot of successes. They also flirted with Newsstand distribution in 1986, but it was too costly, as Comico also discovered, when they tried it. There was also conflict with creators (which led to the talent exodus) over some of their practices, which influenced the drafting of the Creator's Bill of Rights (not that it changed anything). I've heard some vague stories of other shenanigans, but nothing concrete to say specifically.

One of the issues for creators was their supposed ownership of their work. The creators held copyrights; but, First had very long reprint rights; so, they couldn't just yank their books from them. That is part of why guys like Mike Grell and Howard Chaykin walked away from their books and let others handle them.

I met Mike Grell, Mike Gold and John Ostrander at a convention in Collinsville, IL (on the Illinois side of the Mississippi River, near St Louis, MO) and we talked about some things there and Gold made a comment about them keeping the tradition of Malcolm Wheeler,-Nicholson alive, going bankrupt owing lots of people money. He made some other comment about the people there; but, I can't recall it with clarity. I'm pretty sure it wasn't anything about publisher Rick Obadiah, as they were friendly and had known each other for years, with the Organic Theater Company, which is also how John Ostrander came in there and why they debuted with an adaptation of the Warp plays.

First Comics probably did more than any other company to keep me reading comics, when I was drifting away, in high school. I had walked away from X-Men, wasn't overly wowed by anything else at Marvel and Teen Titans was my main DC and I had gaps, at times. I visited a local bookstore that had kept a comics spinner, from time to time, but not in the recent past. They always had a good newsstand and I went in there to poke around and saw they had comics again, but these looked really different. they had a bunch of indy titles and my guess is they were getting stuff via the direct market, becuase there was some AC stuff (the early Americomics series), some Capital and Pacific Comics. It was there I found the first two issues of Jon Sable, then quickly bought the next ones, through his origin story. I also picked up American Flagg when it started and the continuation of Starslayer. I flipped through E-Man, at the time, but didn't buy, nor did I pick up Warp. I then started finding some of the DC and Marvel Baxter format reprints, like Micronauts and Kree-Skrull War, plus the Archie Red Circle relaunch, with the Mighty Crusaders. First was a pretty darn consistent source of quality titles and by the time I was in college, with regular access to a comic shop, they were doing Dreadstar, Grimjack, Nexus, Badger, Dynamo Joe, Whisper, the American Flagg graphic novel collections, Beowulf, the TMNT books, and were starting to put out Lone Wolf and Cub. That is probably my favorite era in comics, from about 1979-1989. I love a lot of the 70s, but I had more income and access across that time and there was a greater variety of titles to fit my tastes and a better level of quality.