diff --git a/lib/twhois.rb b/lib/twhois.rb
index f0da803..d0d8533 100644
--- a/lib/twhois.rb
+++ b/lib/twhois.rb
@@ -1,3 +1,24 @@
+# encoding: utf-8
+
+require 'rubygems'
+require 'net/http'
+require 'json'
+require 'hashie'
+
+require 'twhois/user'
+require 'twhois/version'
+
 module Twhois
-  # Your code goes here...
+  
+  LOOKUP_HOST = "api.twitter.com"
+  LOOKUP_PATH = "/1/users/show.json?screen_name="
+  
+  # Lookup a Twitter user by their username.
+  def self.lookup(username)
+    res = Net::HTTP.start(LOOKUP_HOST) { |http| http.get(LOOKUP_PATH + username) }
+    if res.code == '200'
+      User.new(JSON.parse(res.body))
+    end
+  end
+  
 end
diff --git a/lib/twhois/user.rb b/lib/twhois/user.rb
new file mode 100644
index 0000000..ec96c14
--- /dev/null
+++ b/lib/twhois/user.rb
@@ -0,0 +1,7 @@
+# encoding: utf-8
+
+module Twhois
+  class User < ::Hashie::Mash
+    
+  end
+end
diff --git a/lib/twhois/version.rb b/lib/twhois/version.rb
index 834d455..6b5386f 100644
--- a/lib/twhois/version.rb
+++ b/lib/twhois/version.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Twhois
   VERSION = "0.0.1"
 end
diff --git a/spec/twhois_spec.rb b/spec/twhois_spec.rb
new file mode 100644
index 0000000..5a562d6
--- /dev/null
+++ b/spec/twhois_spec.rb
@@ -0,0 +1,25 @@
+require 'spec_helper'
+
+describe Twhois do
+  
+  it "should find author's twitter account" do
+    user = Twhois.lookup('jimeh')
+    user.screen_name.should == "jimeh"
+    user.lang.should == "en"
+    user.profile_image_url.should_not be_nil
+    user.name.should_not be_nil
+    user.location.should_not be_nil
+    user.url.should_not be_nil
+    user.followers_count.should_not be_nil
+    user.description.should_not be_nil
+    user.time_zone.should_not be_nil
+    user.profile_background_image_url.should_not be_nil
+    # ...that should be enough
+  end
+  
+  it "should return error on unknown user" do
+    user = Twhois.lookup('jimehoawhefoahelfhasdf')
+    user.should be_nil
+  end
+  
+end
\ No newline at end of file