diff --git a/lib/CCreatureSet.cpp b/lib/CCreatureSet.cpp
index 8d26fd6ec..f471a1f64 100644
--- a/lib/CCreatureSet.cpp
+++ b/lib/CCreatureSet.cpp
@@ -374,15 +374,20 @@ bool CCreatureSet::canBeMergedWith(const CCreatureSet &cs, bool allowMergingStac
 	}
 	else
 	{
-		std::set<const CCreature*> cres;
+		CCreatureSet cres;
 
 		//get types of creatures that need their own slot
 		for(TSlots::const_iterator i = cs.stacks.begin(); i != cs.stacks.end(); i++)
-			cres.insert(i->second->type);
+			cres.addToSlot(i->first, i->second->type->idNumber, 1, true);
+		TSlot j;
 		for(TSlots::const_iterator i = stacks.begin(); i != stacks.end(); i++)
-			cres.insert(i->second->type);
-
-		return cres.size() <= ARMY_SIZE;
+		{
+			if ((j = cres.getSlotFor(i->second->type)) >= 0)
+				cres.addToSlot(j, i->second->type->idNumber, 1, true);  //merge if possible
+			else
+				return false; //no place found
+		}
+		return true; //all stacks found their slots
 	}
 }
 
diff --git a/lib/CObjectHandler.cpp b/lib/CObjectHandler.cpp
index e118cf2f9..4480289d9 100644
--- a/lib/CObjectHandler.cpp
+++ b/lib/CObjectHandler.cpp
@@ -4873,6 +4873,7 @@ void CGPandoraBox::giveContents( const CGHeroInstance *h, bool afterBattle ) con
 {
 	InfoWindow iw;
 	iw.player = h->getOwner();
+	std::string msg = message; //in case box is removed in the meantime
 
 	bool changesPrimSkill = false;
 	for (int i = 0; i < primskills.size(); i++)
@@ -5044,11 +5045,10 @@ void CGPandoraBox::giveContents( const CGHeroInstance *h, bool afterBattle ) con
 
 		cb->showInfoDialog(&iw);
 		cb->giveCreatures(this, h, creatures, true);
-		//boost::bind(&CGPandoraBox::endBattle, this, h, _1)
 	}
-	if(!afterBattle && message.size())
+	if(!afterBattle && msg.size())
 	{
-		iw.text << message;
+		iw.text << msg;
 		cb->showInfoDialog(&iw);
 	}
 	if (!creatures.Slots().size())
diff --git a/lib/CObjectHandler.h b/lib/CObjectHandler.h
index 391de10c4..c11a6e1eb 100644
--- a/lib/CObjectHandler.h
+++ b/lib/CObjectHandler.h
@@ -654,7 +654,6 @@ class DLL_EXPORT CGPandoraBox : public CArmedInstance
 {
 public:
 	std::string message;
-	ui8 removeAfterVisit; //true if event is removed after occurring
 
 	//gained things:
 	ui32 gainedExp;
@@ -688,17 +687,15 @@ public:
 class DLL_EXPORT CGEvent : public CGPandoraBox  //event objects
 {
 public:
-
+	ui8 removeAfterVisit; //true if event is removed after occurring
 	ui8 availableFor; //players whom this event is available for
 	ui8 computerActivate; //true if computre player can activate this event
 	ui8 humanActivate; //true if human player can activate this event
 
 	template <typename Handler> void serialize(Handler &h, const int version)
 	{
-		h & static_cast<CArmedInstance&>(*this);
-		h & message & gainedExp & manaDiff & moraleDiff & luckDiff & resources & primskills
-			& abilities & abilityLevels & artifacts & spells & creatures & availableFor 
-			& computerActivate & humanActivate;
+		h & static_cast<CGPandoraBox &>(*this);
+		h & removeAfterVisit & availableFor & computerActivate & humanActivate;
 	}
 	
 	void onHeroVisit(const CGHeroInstance * h) const;
diff --git a/server/CGameHandler.cpp b/server/CGameHandler.cpp
index d0c94e77f..dfb6490e3 100644
--- a/server/CGameHandler.cpp
+++ b/server/CGameHandler.cpp
@@ -1586,13 +1586,12 @@ void CGameHandler::giveCreatures(const CArmedInstance *obj, const CGHeroInstance
 	COMPLAIN_RET_IF(creatures.stacksCount() > ARMY_SIZE, "Too many stacks to give!");
 
 	//first we move creatures to give to make them army of object-source
-	for(int i = 0; i != creatures.stacksCount(); i++)
+	for (TSlots::const_iterator stack = creatures.Slots().begin(); stack != creatures.Slots().end(); stack++)
 	{
-		TSlots::const_iterator stack = creatures.Slots().begin();
-		addToSlot(StackLocation(obj, i), stack->second->type, stack->second->count);
-	}
+		addToSlot(StackLocation(obj, obj->getSlotFor(stack->second->type)), stack->second->type, stack->second->count);
+	}		
 
-	tryJoiningArmy(obj, h, remove, false);
+	tryJoiningArmy(obj, h, remove, true);
 }
 
 void CGameHandler::takeCreatures(int objid, std::vector<CStackBasicDescriptor> creatures)
@@ -4522,6 +4521,24 @@ void CGameHandler::tryJoiningArmy(const CArmedInstance *src, const CArmedInstanc
 {
 	if(!dst->canBeMergedWith(*src, allowMerging))
 	{
+		if (allowMerging) //do that, add all matching creatures.
+		{
+			bool cont = true;
+			while (cont)
+			{
+				for(TSlots::const_iterator i = src->stacks.begin(); i != src->stacks.end(); i++)//while there are unmoved creatures
+				{
+					TSlot pos = dst->getSlotFor(i->second->type);
+					if(pos > -1)
+					{
+						moveStack(StackLocation(src, i->first), StackLocation(dst, pos));
+						cont = true;
+						break; //or iterator crashes
+					}
+					cont = false;
+				}
+			}
+		}		
 		boost::function<void()> removeOrNot = 0;
 		if(removeObjWhenFinished) 
 			removeOrNot = boost::bind(&IGameCallback::removeObject,this,src->id);