SECOND AMENDMENT TO NET LEASE AGREEMENT


     THIS  AMENDMENT  TO NET  LEASE AGREEMENT, made  and  entered
into  effective as of the  11th day of September,  2000,  by  and
between AEI Income & Growth Fund XXI Limited Partnership,  ("Fund
XXI"),  whose principal business address is 1300 Minnesota  World
Trade  Center, 30 East Seventh Street, St. Paul, Minnesota  55101
(hereinafter   collectively  referred  to   as   "Lessor"),   and
Tumbleweed,  Inc.  (hereinafter referred to as  "Lessee"),  whose
principal  business  address  is  2301  River  Road,  Suite  200,
Louisville, Kentucky;

                          WITNESSETH:

     WHEREAS, Lessor is the fee owner of a certain parcel of real
property  and improvements located at Ellison Road,  Fort  Wayne,
Indiana , and legally described in Exhibit "A", which is attached
hereto and incorporated herein by reference; and

      WHEREAS, Lessee and Lessor Fund XXI have entered into  that
certain  Net Lease Agreement dated March 8, 2000, as  amended  by
that  certain  First  Amendment  to  Net  Lease  Agreement  dated
effective  as of September 11, 2000  (the "Lease") providing  for
the  lease of said real property and Building (said real property
and  Building hereinafter referred to as the "Leased  Premises"),
from Lessor upon the terms and conditions therein provided in the
Lease;

     WHEREAS,  Lessee and Lessor entered into that certain  First
Amendment  to  the  Net Lease Agreement of  even  effective  date
hereof, and said First Amendment contained a typographical  error
respecting  the payment of rents in the second lease year,  which
provision  was intended by the parties to be governed by  Article
4(B)  of  the  Net  Lease Agreement and was not  intended  to  be
amended; and

     WHEREAS,  the  Multi-Site Agreement dated  effective  as  of
November 20, 1997, as amended on April 29, 1999, effective as  of
May  20, 1999 also provides for the payment of rents as correctly
reflected in Article 4(B) of the Net Lease Agreement and  not  as
erroneously  reflected in the First Amendment to  the  Net  Lease
Agreement;

     NOW,  THEREFORE,  in  consideration  of  the  Rents,  terms,
covenants, conditions, and agreements hereinafter described to be
paid, kept, and performed by Lessee, including the completion  of
the  Building  and  other  improvements constituting  the  Leased
Premises,  Lessee and Lessor do hereby agree to amend  the  Lease
and correct the First Amendment to Lease as follows:





     1.    Article  4(A)  of the Lease shall henceforth  read  as
follows:

ARTICLE 4.  RENT PAYMENTS

     (A)  Annual  Rent  Payable for the  first  Lease  Year:
          Lessee shall pay to Lessor an annual Base Rent  of
          $132,621.25,  which  amount shall  be  payable  in
          advance  on the first day of each month  in  equal
          monthly  installments of $11,051.77 to  Fund  XXI.
          If  the  first day of the Lease Term  is  not  the
          first  day  of a calendar month, then the  monthly
          Rent  payable for that partial month  shall  be  a
          prorated  portion of the equal monthly installment
          of Base Rent.

2.   All  other  terms and conditions of the Lease and any  prior
     amendments thereto shall remain in full force and effect.

3.   This  Agreement  may  be executed in multiple  counterparts,
     each of which shall be deemed an original and all of which shall
     constitute one and the same instrument.
1.
IN  WITNESS  WHEREOF, Lessor and Lessee have respectively  signed
and sealed this Lease as of the day and year first above written.


                     LESSEE:  Tumbleweed, Inc.,

                                   By:/s/ Gregory A Compton
                                   Its: VP/Secretary


STATE OF KENTUCKY)
                    )SS.
COUNTY OF JEFFERSON)


     The foregoing instrument was acknowledged before me this 3rd
day    of    October,   2000,   by   Greg   Compton,   as    Vice
President/Secretary  of  Tumbleweed,  Inc.,  on  behalf  of  said
corporation.

                                    /s/ Lisa Hall Griffin
                         Notary Public
                         My commission expires 4-27-2003


          [Remainder of page intentionally left blank]

LESSOR:

                           AEI INCOME & GROWTH FUND XXI LIMITED
PARTNERSHIP

                            By:    AEI Fund Management XXI, Inc.
                    By: /s/ Robert P Johnson
                                                       Robert P.
                                   Johnson, President



STATE OF MINNESOTA  )
                                   )SS.
COUNTY OF RAMSEY    )

     The foregoing instrument was acknowledged before me the 24th
day  of October, 2000, by Robert P Johnson, the President of  AEI
Fund  Management  XXI,  Inc., a Minnesota corporation,  corporate
general   partner  of  AEI  Income  &  Growth  Fund  XXI  Limited
Partnership, on behalf of said limited partnership.

                              /s/ Barbara J Kochevar
                              Notary Public

[notary seal]

SECOND  LEASE AMENDMENT, TUMBLEWEED, FORT WAYNE, INDIANA, ELLISON
ROAD