diff --git a/docs/HallsOfVrbansk.pod b/docs/HallsOfVrbansk.pod
index c7b7f5b4..19805821 100644
--- a/docs/HallsOfVrbansk.pod
+++ b/docs/HallsOfVrbansk.pod
@@ -4,4 +4,55 @@ Halls Of Vrbansk is accessible via the URL C</hallsofvrbansk>.
 
 The list of methods below represents changes and additions to the methods that all L<Buildings> share.
 
+
+=head2 get_upgradable_buildings ( session_id, building_id )
+
+Returns a list of buildings that can be upgraded by the Halls of Vrbansk.
+
+ {
+    "status" : { ... },
+    "buildings" : [
+        {
+            "name" : "Oracle of Anid",
+            "id" : "id-goes-here",
+            "x" : -3,
+            "y" : 2,
+            "image" : "oracleanid1",
+            "level" : 1
+        },
+        ...
+    ]
+ }
+
+=head3 session_id
+
+A session id.
+
+=head3 building_id
+
+The unique id of the Halls of Vrbansk.
+
+
+=head2 sacrifice_to_upgrade ( session_id, building_id, upgrade_building_id )
+
+Sacrifices a number of the Halls of Vrbansk to upgrade a building. 
+
+ {
+    "status" : { ... }
+ }
+ 
+B<NOTE:> In all likelyhood the Halls of Vrbansk that the player is looking at when they call this method will be destroyed. The building will return a status, but then you should close whatever screen you have open for it and refresh the planet surface. The C<needs_surface_refresh> flag will be set in the body status on the return. You should wait for the return to close the building though, in case of an exception.
+ 
+=head3 session_id
+
+A session id.
+
+=head3 building_id
+
+The unique id of the Halls of Vrbansk.
+
+=head3 upgrade_building_id
+
+The unique id of the building you wish to upgrade.
+
 =cut
\ No newline at end of file
diff --git a/lib/Lacuna.pm b/lib/Lacuna.pm
index 2ec5b8fc..e78bdb58 100644
--- a/lib/Lacuna.pm
+++ b/lib/Lacuna.pm
@@ -7,7 +7,7 @@ use Config::JSON;
 
 useall __PACKAGE__;
 
-our $VERSION = 2.3600;
+our $VERSION = 2.3700;
 
 my $config = Config::JSON->new('/data/Lacuna-Server/etc/lacuna.conf');
 my $db = Lacuna::DB->connect($config->get('db/dsn'),$config->get('db/username'),$config->get('db/password'), { mysql_enable_utf8 => 1});
diff --git a/lib/Lacuna/DB/Result/Building/Permanent/HallsOfVrbansk.pm b/lib/Lacuna/DB/Result/Building/Permanent/HallsOfVrbansk.pm
index b6692edd..f190cd60 100644
--- a/lib/Lacuna/DB/Result/Building/Permanent/HallsOfVrbansk.pm
+++ b/lib/Lacuna/DB/Result/Building/Permanent/HallsOfVrbansk.pm
@@ -31,6 +31,21 @@ after finish_upgrade => sub {
     $self->body->add_news(30, sprintf('The ancient wisdom of the Great Race is still alive on %s.', $self->body->name));
 };
 
+sub get_halls {
+    my $self = shift;
+    return $self->body->get_buildings_of_class('Lacuna::DB::Result::DB::Building::Permanent::HallsOfVrbansk');
+}
+
+sub get_upgradable_buildings {
+    my ($self) = @_;
+    my @halls = $self->get_halls->get_column('id')->all;
+    return $self->body->buildings-search({
+        level   => { '<' => scalar @halls},
+        class   => { like => 'Lacuna::DB::Result::Building::Permanent::%' },
+        id      => { 'not in' => \@halls },
+    });
+}
+
 use constant name => 'Halls of Vrbansk';
 use constant time_to_build => 0;
 
diff --git a/lib/Lacuna/RPC/Building/HallsOfVrbansk.pm b/lib/Lacuna/RPC/Building/HallsOfVrbansk.pm
index c064a3f1..50ae5fc0 100644
--- a/lib/Lacuna/RPC/Building/HallsOfVrbansk.pm
+++ b/lib/Lacuna/RPC/Building/HallsOfVrbansk.pm
@@ -13,6 +13,50 @@ sub model_class {
     return 'Lacuna::DB::Result::Building::Permanent::HallsOfVrbansk';
 }
 
+sub get_upgradable_buildings {
+    my ($self, $session_id, $building_id) = @_;
+    my $empire = $self->get_empire_by_session($session_id);
+    my $building = $self->get_building($empire, $building_id);
+    my @buildings;
+    my $upgradable = $building->get_upgradable_buildings;
+    while (my $building = $upgradable->next) {
+        push @buildings, {
+            id      => $building->id,
+            name    => $building->name,
+            x       => $building->x,
+            y       => $building->y,
+            level   => $building->level,
+            image   => $building->image_level,
+        };
+    }
+    return {
+        buildings   => \@buildings,
+        status      => $self->format_status($empire, $building->body),
+    };
+}
+
+sub sacrifice_to_upgrade {
+    my ($self, $session_id, $building_id, $upgrade_id) = @_;
+    my $empire = $self->get_empire_by_session($session_id);
+    my $building = $self->get_building($empire, $building_id);
+    my $upgrade = $self->get_building($empire, $upgrade_id);
+    my @upgradable = $building->get_upgradable_buildings->get_column('id')->all;
+    unless ($upgrade->id ~~ \@upgradable) {
+        confess [1009, 'The Halls of Vrbansk do not have the knowledge necessary to upgrade the '.$upgrade->name];
+    }
+    $upgrade->start_upgrade;
+    my $halls = $building->get_halls;
+    foreach (1..$upgrade->level + 1) {
+        $halls->next->delete;
+    }
+    my $body = $building->body;
+    $body->needs_surface_refresh(1);
+    $body->update;
+    return { status => $self->format_status($empire, $body) };
+}
+
+__PACKAGE__->register_rpc_method_names(qw(get_upgradable_buildings sacrifice_to_upgrade));
+
 no Moose;
 __PACKAGE__->meta->make_immutable;
 
diff --git a/var/www/public/changes.txt b/var/www/public/changes.txt
index e2065d5f..017bc228 100644
--- a/var/www/public/changes.txt
+++ b/var/www/public/changes.txt
@@ -1,3 +1,7 @@
+2.3700
+ - Fixed pagination in mission curator panel.
+ - Added exposed API for Halls of Vrbansk.
+
 2.3600
  - Added alliance stash methods to the embassy.
  - Added mission curator panel.