1) It is not possible to drain energy from the tombstone. Instead, a kind of repel-like counter feedback would be experienced instead, sending the user back a bit.

2) It does contain something inside (oooh aaah) that could be assumed to be a soul, but it cannot be taken out. Any attempt to draw it out will cause the person to go mad and behaved erratic and aggressive towards those around them until they are healed with holy/light magic. Fortunately there is an abundance of them around so can always use an NPC in the research facility to help with that if you can't plot with another player for it!

3) It is a rock with magical cursed properties, though it'll take some research to figure out what exactly.

Here are the answers in order!

1) There is nothing in the archives about the stone itself, but there could be texts about similar relics that used blood and rituals to call upon undead. There is, however, conflicting information. Some texts say the ritual used the blood and sacrifice of the caster. Others say someone else must perform the ritual and use another sacrifice. Perhaps there are multiple different possible rituals, but hard to say as such things are forbidden in modern times. While it's always possible for something to happen underground, the last known widespread use of those rituals were centuries ago.

2) There will be no matches to the script specifically on the tombstone, but it can be noted that the engraving looks to be someone's handwriting. Perhaps a match could be made, but that would be a tall order. There are also certain phrases that are commonly used with sacrificial rituals that can be found.

3) There will be no ships found in modern times that is similar to the ghost ship. However, there are records and those who are well versed in ship history that would have recognized it as one that was used centuries before. We're leaving actual specifics of the type of ship a bit vague here, including exact years as the most important to note would be that this ship was old and indicates the crew as also long dead and gone.

Sorry for the delay!

1) Because the pieces are broken, they have become inert and will not react to any blood of any kind.

2) There are a few sigils and symbols that were noted or taken pictures of by those who were more interested in "studying" the ship while others were fighting everything else, however researching into this at the moment is difficult as there is a lockdown on the very archives and buildings that could lend answers due to the Gallows incident. So the answer is yes, it's possible! But it's "locked away" for now and another opportunity will be given later.

1) If her hacking skills are innate skills she trained up to, then she won't need a tattoo at all for it! If there was some supernatural component, however, then she would need the tattoo to bring it up to the same level.

2) There is not a specific tattoo for it, but it would be possible to have some kind of ability gained from them along with the other abilities that could be developed based on their tattoo's element.

3) They can be dismantled, but not modified. They will look similar to modern day cellphones, but with magitech (you may use your imagination cough).