From 80beb0c054962a67e612d0239abb4c00d1bf5ca5 Mon Sep 17 00:00:00 2001
From: Anwesha Chatterjee <@boeing.com.au>
Date: Thu, 22 Jun 2017 15:59:53 +1000
Subject: [PATCH] if adventure by the specified name not found, then throw
 error

---
 index.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/index.js b/index.js
index bb4eae4..6d0118b 100644
--- a/index.js
+++ b/index.js
@@ -242,6 +242,12 @@ Shop.prototype.fail = function (name, p) {
 
 Shop.prototype.select = function (name) {
     var adv = this.find(name);
+    if (!adv) {
+	return this._error(
+        'An adventure with this name does not exist. '
+        + 'Select an adventure from the menu.'
+    );
+    }
     this.state.current = name;
     this.save('current');