Base table or view not found: 1146 Table '' doesn't exist

I am trying to seed a many-to-many join table of quests and npcs in those quests... a quest can have many npcs, and an NPC can be used in many quests. I am using Laravel 5.

When seeding the Quest table, I'm also seeding the join table, but am getting the following error:

Base table or view not found: 1146 Table 'clg_local.npc_quest' doesn't exist

Create Quest and Quest_NPC table:

public function up()
{
    /*
     * Create quests table
     */
    Schema::create('quests', function(Blueprint $table)
    {
        $table->increments('id');
        $table->string('quest_name')->nullable();
        $table->unsignedInteger('reward_xp')->nullable();
        $table->string('reward_items')->nullable();
        $table->unsignedInteger('reward_money')->nullable();

    });

    /*
     * Create quests_npcs join table
     */
    Schema::create('quest_npc', function(Blueprint $table)
    {
        $table->increments('id');
        $table->unsignedInteger('quest_id')->nullable();
        $table->unsignedInteger('npc_id')->nullable();

    });

In a separate create, I specify my relations:

    Schema::table('quest_npc', function(Blueprint $table)
    {
        $table->foreign('quest_id')->references('id')->on('quests')->onDelete('cascade');
        $table->foreign('npc_id')->references('id')->on('npcs')->onDelete('cascade');
    });

Clearly I am creating a quest_npc table, but it's looking for a npc_quest table?

Quest seeder:

public function run()
{
    Eloquent::unguard();

    $quests = $this->createQuests();

    $npcs = Npc::all()->toArray();

    foreach ($quests as $quest) {

        $quest->npcs()->attach($npcs[rand(0, count($npcs) - 1)]['id']);
    }

private function createQuests()
{
    Quest::unguard();

    $quests = [];

    foreach (
        [
            [
                'quest_name' => 'Quest 1',
                'reward_xp' => 200,
                'reward_items' => null,
                'reward_money' => 200,
            ], ...

NPC model:

public function npcs()
{
    return $this->belongsToMany(Npc::class);
}

Quest model:

public function quests()
{
    return $this->belongsToMany(Quest::class);
}

via Chebli Mohamed