The Tower Heart
The unique orb,originally known as Tower Heart in Mellow Hills.
The Tower Heart is a large glowing
The Tower Heart in Mellow Hills,teleported by Gubbin,Giblet,Mouldy and other minions.
magical orb possessing great power. It originally powered the Dark Tower. The heart collects magical energy and grows in power with its Overlord.
History
The true origin of the Tower Heart is unknown. After Seven Heroes defeated the Second Overlord, the Dark Tower was looted and the Tower Heart lost.
The Tower Heart in Mellow Hills.
Overlord
When the 8th hero became the Third Overlord, he went to the last known location of the heart, Mellow Hills. From there he searched for the heart and found it in the middle of a group of pumpkins — the halflings had been using the heart to grow them. The heart was taken back to the tower to power it.
When the Second Overlord returned to the tower in the body of the Wizard, the Tower Heart was damaged by the Third Overlord's mistress, causing it to glow red. After the Third Overlord defeated the possessed Wizard, the Tower Heart returned to normal,it becomed more powerful,the rocks around the tower heart spinned at high speed,but the tower heart was stable.
Overlord:Raising Hell
after the overlord was blocked in the Infernal Abyss,the tower heart started to lose its accumuleted energy due of the overlord was cut off from it violently,after the mistress dissapeared with the still not born Overlord,the minions abandoned the dark tower,but leaving a bit of minions to guard it in case of return,the hives were taken,but for unknown reasons,the tower heart was kept in the dark tower,shortly after the Minion Exodus was complete, Florian Greenheart came in the dark tower(led by Rose)and tried to asorb power from the Tower Heart,but since its power can only be asorbed by the reigning overlord,it became unstable and exploded causing a Magical Plague and decimating the surrounding land, turning it into the Wasteland.
Overlord II
The Tower Heart about to be catapulted.
When the Fourth Overlord first ventured into the Wastelands, he found a single shard of the Tower Heart. Some time later, he came back to collect the other shards, with the help of Florian Greenheart.
After collecting all twelve shards, Queen Fay assembled the heart and told him to recharge it with the energy from the four shrines in the sanctuary depths. He ventured into the depths with the heart and recharged it at all four shrines.
However, the heart still was not fully charged. After Queen Fay realised that she had sacrificed the life in the sanctuary for nothing, she decided to sacrifice her own energy. The Overlord then proceeded to absorb her energy, but there was resistance from creatures in the sanctuary, who wanted to stop him. Queen Fay was carried off multiple times by two fairies. After chasing her around the sanctuary town, he eventually absorbed all her energy, corrupting her at the same time, turning her into Dark Fay (killing her afterwards makes her Ghost Fay).
later the tower heart was returned briefly to the Netherworld Tower.Gnarl suggested a plan to attack the Imperial City directly and destroy Solarius once and for all.Unfortunately, the Anti-Magic Wall of Empire City could only be destroyed by a powerful magic relic, and for a terrible price, the Heart is sacrified to be catapulted into Empire City,destroying the barrier forever though its energy was later absorbed by Solarius' Sanctuaries for his "ascension" into Godhood.
It is unknown if the shards are still intact. If it is, it's possible that the shards were assembled again.but it's more probable that was forgotten under the city ruins,waiting for the old overlord to recover.
Overlord: Dark Legend
When Lord Gromgard turned sixteen, he received a magical gauntlet kept in storage for him until his birthday. After his brother and sister left Castle Gromgard, he used the gauntlet to open a sealed door to the castle's throne room. In the room he found the Overlord armour, left there by his uncle, the previous Overlord. After obtaining the armour and awakening Gnarl, Lord Gromgard discovered the Castle Heart (later Tower Heart). From then on he used the Castle Heart to travel the lands.
Trivia
The Tower Heart could have been based from the Palantir stone from the J.R. Tolkien LOTR,this is assumed because they have the same form,have all seing ability to see what happens in the world,and gives off precious informations to its users
it can give corruption in his overlord users,since the overlord was corrupted,and became more powerful,justifing how the dark tower lands were covered by dark clouds of evil energy.
it has unstimable value,ancient,and it's the primary weapon of the overlord(aside from the minions),without it,it is much more difficult to develop his empire and keep the overlord powerful.