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8-K - CURRENT REPORT DATED 11-2-12 - KollagenX Corp.g6393.txt

                                                                    Exhibit 16.1

                                 HAMILTON, P.C.
                           2121 S Oneida St., Ste 312
                                Denver, CO 80224
                                 (303) 548-8072

November 14, 2012

Securities and Exchange Commission
100 F. Street, N.E.
Washington, DC 20549

RE: Raider Ventures Inc.
    File No. 000-54667

Commissioners:

We have  read  Item  4.01 of the Form 8-K  dated  November  8,  2012,  of Raider
Ventures Inc. and are in agreement with the statements contained therein insofar
as they relate to our  resignation and our audit for the fiscal year ended March
31,  2012 and our  reviews of interim  financial  statements.  We agree with the
statements  concerning  our Firm in such Form 8-K.  At this  time,  there are no
accounting disagreements on the financial statements audited or reviewed by this
firm and filed with the  Securities  and  Exchange  Commission.  We are not in a
position to agree or disagree with the statements contained therein in Item 4.01
regarding the engagement of another  independent  registered  public  accounting
firm or the  approval  of such  engagement  by the  Board  of  Directors  of the
registrant.

Sincerely,


/s/ Hamilton, P.C.
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