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Lost Lore is a game mode in Fire Emblem Heroes. It is a game mode where players send out characters to scout the series' realms in order to restore part of the Heroes' Saga, the chronicle that allows the Order of Heroes to know about the series' source realms.
There are two variants to this mode; the main variant is known as simply Lost Lore, while a shortened and simplified variant of this mode is known as Lost Lore: Spoils. The Spoils variant notably has a different story involving recouping the Order of Heroes' finances and features the realms of Heroes's own world.
There are two types of gameplay in this mode, the Scout and the Strike. Both types of gameplay are largely hands-off, in that player input is generally limited to character selection. The Spoils variant features only Scout, it does not include Strike.
The Scout works similarly to modes such as the Merc Missions of Xenoblade Chronicles 2. Players choose two characters to send out into the field, and one of three options as to how many Lore Lines are targeted to be recovered by the team. The more Lore Lines targeted for recovery, the farther the progress bar will fill, but the longer a single dispatch will last with the maximum 20 Lore Line target equating a 20 hour mission; progress bar progress can be augmented by sending out characters native to the source realm. If a player sends out two characters native to the source realm on a maximum-target mission, it should be enough to completely fill the progress bar in Act 1.
Initially, players may send out only one team at a time; however, recovering enough Lore Lines will unlock the ability to send out two teams at once, and later on three teams at once.
A single scouting target's completion yields an Orb. In the main variant of the mode, in addition to the Orb, a target's completion also yields one page of the Heroes' Saga. Events in the main variant includes four Scout missions, which in the main variant comprise the first four Acts of the realm's portion of the Heroes' Saga; in the Spoils event, all five missions are Scout missions.
Source realms in Lost Lore work a bit differently than in other areas of the game. As opposed to the treatment of the worlds in other areas of the game, in which each game apart from Fates gets their own world, with the DS remakes getting separate worlds from their originals' worlds, while Fates gets a world for each of its main countries before factoring in origin worlds in the vein of the World of Origin, Lost Lore's treatment of the worlds rolls games taking place in the same core world and close timeframe together; in addition to rolling in remakes together with their originals (i.e. New Mystery of the Emblem's world into Mystery of the Emblem's world), it also rolls sequels and prequels into the same world in a similar fashion (i.e. Thracia 776's world into Genealogy of the Holy War's world), in some cases using a world name not used elsewhere in the game.
|Source realm handling|
|Game of origin||World name elsewhere in Heroes||World name in Lost Lore|
|Shadow Dragon and the Blade of Light||As yet unnamed||World of Mystery|
|Shadow Dragon and the Blade of Light Origin||World of Origin|
|Mystery of the Emblem||World of Mystery|
|Shadow Dragon||As yet unestablished|
|New Mystery of the Emblem||World of Mystery Renewed|
|Gaiden||As yet unestablished||World of Shadows|
|Echoes: Shadows of Valentia||World of Shadows|
|Genealogy of the Holy War||World of Holy War||World of Holy War|
|Thracia 776||World of Thracia|
|The Binding Blade||World of Binding||World of Blades|
|The Blazing Blade||World of Blazing|
|The Sacred Stones||The Sacred World||The Sacred World|
|The Sacred Stones Origin||As yet unnamed|
|Path of Radiance||World of Radiance||World of Radiance|
|Radiant Dawn||World of Dawn|
|Awakening||World of Awakening|
|Fates: Birthright||World of Birthright||World of Fates|
|Fates: Conquest||World of Conquest|
|Fates: Revelation||As yet unnamed|
|Three Houses||As yet unnamed||World of Crests|
|Heroes||World of Zenith||World of Heroes|
|Tokyo Mirage Sessions ♯FE Encore||As yet unnamed||As yet unnamed|
|The world names used elsewhere in Heroes were, for the most part, introduced via either a chapter name, chapter dialogue, or a summoning event associated with its introduction to the game. The exceptions are Three Houses, in which Lost Lore's data was the first instance where its world was given a name, and Tokyo Mirage Sessions ♯FE Encore, which has not had its world named anywhere to date.|
Once the four Scout missions have been completed, the event's Strike mission will unlock. Players send out four characters on Strike missions, where the team will do battle against a team of four mysterious opponents. A hint is given as to what type of character a player should send into a Strike.
Strike battles take three turns, after which more information about the opponents becomes known. Revealed opponents will make usage of their character icons from one of their games of origin. Repeating the strike mission will reveal more information about the battle's opponents. Successfully completing the Strike mission will yield an Orb and the final page of the realm's portion of the Heroes' Saga.
As players recover more Lore Lines, they receive rewards based from the below tables. This is in addition to both fixed and random rewards from the Scout and Strike missions.
- Note: Divine Code: Ephemera items were not available prior to the fifth event of the main variant.
List of Lost Lore events
Unlike most game modes, details about further main-variant events are known due to information pertaining to them being added to the game alongside the mode itself; such information involving twelve main-event variants were added alongside the mode itself.
- Note: All date ranges begin at 7:00 AM UTC on the first listed date and end at 6:59 AM UTC on the second listed date.
|List of Lost Lore (main variant) events|
|White Rose and Sable Knight||World of Mystery||Shadow Dragon & the Blade of Light
Mystery of the Emblem
New Mystery of the Emblem
|August 13, 2019 – September 3, 2019||Script||Shadow Dragon is stated as a game to yield bonuses, but no characters were credited to that game at the time of this event|
Shadow Dragon & the Blade of Light is not stated as a game to yield bonuses (Shadow Dragon is stated in its place), but the lone character credited to that game at the time of this event, Wrys, does yield bonuses when selected
Contrary to what the usage of "World of Mystery" would otherwise imply, the Strike opponents' icons are based off Shadow Dragon & the Blade of Light
|One of True Sight||World of Blades||The Binding Blade
The Blazing Blade
|September 14, 2019 – October 5, 2019||Script||--|
|The Martyr Exalt||World of Awakening||Awakening||November 13, 2019 – December 4, 2019||Script||--|
|His Inner Strength||World of Shadows||Echoes: Shadows of Valentia||January 25, 2020 – February 15, 2020||Script||--|
|Life Returns||World of Radiance||Path of Radiance
|March 26, 2020 – April 15, 2020||Script||--|
|In the White Light||World of Fates||Fates||June 1, 2020 – June 22, 2020||Script||--|
|A Knight, a Friend||World of Holy War||Genealogy of the Holy War
|July 17, 2020 – August 7, 2020||Script||--|
|Sacred, Dark, And...||The Sacred World||The Sacred Stones||November 2, 2020 – November 23, 2020||Script||--|
|The Red Dragoon||World of Mystery||Shadow Dragon & the Blade of Light
Mystery of the Emblem
New Mystery of the Emblem
|December 27, 2019 – January 17, 2021||Script||First event not among the events to have information pertaining to it added alongside the mode itself (only one World of Mystery event was added to the game alongside the mode itself, this event is the second involving the World of Mystery)|
Notes applicable to "White Rose and Sable Knight" also apply here, amended with the pirate variation of Darros joining the same category as Wrys
|Unattained Dream||World of Blades||The Binding Blade
The Blazing Blade
|February 24, 2021 – March 17, 2021||Script||--|
|The Verge of History||World of Awakening||Awakening||April 16, 2021 – May 7, 2021||Script||Not among the events to have information pertaining to it added alongside the mode itself (only one World of Awakening event was added to the game alongside the mode itself, this event is the second involving the World of Awakening)|
|Way of the Heart||World of Shadows||Echoes: Shadows of Valentia||July 6, 2021 – July 27, 2021||Script||Not among the events to have information pertaining to it added alongside the mode itself (only one World of Shadows event was added to the game alongside the mode itself, this event is the second involving the World of Shadows)|
Unusually awarded Divine Code: Ephemera 6 despite being added to the game in the version 5.7 update
|Unannounced||World of Holy War||Genealogy of the Holy War
|Unannounced||World of Radiance||Path of Radiance
|Unannounced||World of Crests||Three Houses||Dates unknown||--|
|List of Lost Lore: Spoils events|
|Spoils of Heroes||April 27, 2020 – May 7, 2020||Script||--|
|Spoils of Heroes||July 4, 2020 – July 14, 2020||no dialogue||--|
|Spoils of Heroes||September 2, 2020 – September 12, 2020||no dialogue||--|
|For Lost Lore: Spoils events, Heroes original characters are the ones yielding bonuses when deployed.|
|Fire Emblem Heroes|