diff --git a/lib/Lacuna/DB/Result/Excavators.pm b/lib/Lacuna/DB/Result/Excavators.pm
index d3ef0ecb..8a207762 100644
--- a/lib/Lacuna/DB/Result/Excavators.pm
+++ b/lib/Lacuna/DB/Result/Excavators.pm
@@ -10,7 +10,7 @@ __PACKAGE__->add_columns(
     planet_id    => { data_type => 'int', size => 11, is_nullable => 0 },
     body_id      => { data_type => 'int', size => 11, is_nullable => 0 },
     empire_id    => { data_type => 'int', size => 11, is_nullable => 0 },
-    date_started => { data_type => 'datetime', is_nullable => 0, set_on_create => 1 },
+    date_landed => { data_type => 'datetime', is_nullable => 0, set_on_create => 1 },
 );
 
 __PACKAGE__->belongs_to('body', 'Lacuna::DB::Result::Map::Body', 'body_id');
diff --git a/lib/Lacuna/RPC/Building/Archaeology.pm b/lib/Lacuna/RPC/Building/Archaeology.pm
index d402cef3..d644463f 100644
--- a/lib/Lacuna/RPC/Building/Archaeology.pm
+++ b/lib/Lacuna/RPC/Building/Archaeology.pm
@@ -1,5 +1,6 @@
 package Lacuna::RPC::Building::Archaeology;
 
+use Lacuna::Util qw(format_date);
 use Moose;
 use utf8;
 no warnings qw(uninitialized);
@@ -143,7 +144,7 @@ sub view_excavators {
         glyph    => $chances->{glyph},
         plan     => $chances->{plan},
         resource => $chances->{resource},
-        date_landed => $building->date_created,
+        date_landed => format_date($building->date_created),
     };
     my $excavators = $building->excavators;
     my $travel = Lacuna->db->resultset('Lacuna::DB::Result::Ships')
@@ -158,7 +159,7 @@ sub view_excavators {
         glyph    => $chances->{glyph},
         plan     => $chances->{plan},
         resource => $chances->{resource},
-        date_landed => $excav->date_landed,
+        date_landed => format_date($excav->date_landed),
       };
     }
     return {
diff --git a/lib/Lacuna/RPC/Building/BlackHoleGenerator.pm b/lib/Lacuna/RPC/Building/BlackHoleGenerator.pm
index c2cb8571..df6387ee 100644
--- a/lib/Lacuna/RPC/Building/BlackHoleGenerator.pm
+++ b/lib/Lacuna/RPC/Building/BlackHoleGenerator.pm
@@ -718,13 +718,13 @@ sub generate_singularity {
                           { rows => 1, order_by => 'rand()' }
                             )->single;
     if (defined $lock_down) {
-        my $power = $lock_down->mayhem_xp + $lock_down->offensive
+        my $power = $lock_down->mayhem_xp + $lock_down->offense;
         my $defense = 0;
         my $hq = $body->get_building_of_class('Lacuna::DB::Result::Building::Security');
         if (defined $hq) {
-            $defense = int($hq->level * $hq->efficiency /2 + 0.5);
+            $defense = $hq->level * $hq->efficiency;
         }
-        my $breakthru = int(($power - $defense + $lock_down->luck)/100 + 0.5);
+        my $breakthru = int(($power - $defense + $lock_down->luck)/100 + 0.5)+50;
         $breakthru = 5 if $breakthru < 5;
         $breakthru = 95 if $breakthru > 95;
         my $failure = 0;
@@ -736,7 +736,7 @@ sub generate_singularity {
             $failure = 1;
         }
         else {
-            $breakthru = $breaktru/2;
+            $breakthru = $breakthru/2;
         }
         my $caught = randint(0,99);
         if ($caught > $breakthru) {
@@ -802,7 +802,7 @@ sub generate_singularity {
             elsif ($spy_cond eq "Escaped") {
                 $o_message = sprintf("Our BHG on %s misfired today.  We suspect enemy action.",
                                      $body->name);
-                $e_message = sprintf("%s was successful on %s in preventing the BHG to be used, %s suspect nothing.",
+                $e_message = sprintf("%s was successful on %s in preventing the BHG to be used, %s suspects nothing.",
                                      $lock_down->name, $body->name, $body->empire->name);
             }
             elsif ($spy_cond eq "Unconscious") {
@@ -852,7 +852,7 @@ sub generate_singularity {
         $lock_down->empire->send_predefined_message(
                 tags        => ['Spies','Alert'],
                 filename    => 'bhg_sabotage_them.txt',
-                params      => [$o_message],
+                params      => [$e_message],
         );
         if ($spy_cond eq "Killed") {
             $lock_down->available_on(DateTime->now->add(years => 5));
@@ -862,7 +862,7 @@ sub generate_singularity {
             $lock_down->available_on(DateTime->now->add(days=>7));
             $lock_down->task('Captured');
             $lock_down->started_assignment(DateTime->now);
-            $lock_down->times_captured( $self->times_captured + 1 );
+            $lock_down->times_captured( $lock_down->times_captured + 1 );
         }
         elsif ($spy_cond eq "Squeek" or $spy_cond eq "Escaped") {
         }